CN220703639U - Anti-band plate device - Google Patents

Abstract

The utility model discloses a band guard device. The band guard device comprises an adapter and at least two clamping mechanisms, wherein the adapter is in plug-in fit with a deep hole plate, at least one clamping mechanism is arranged on two sides of the adapter, which are opposite to each other, a space allowing the deep hole plate to be inserted is formed between the clamping mechanism and the side wall surface of the adapter, a limit baffle of the clamping mechanism is fixedly arranged on one side of the adapter, one end of a side clamping spring piece is fixedly arranged relative to the limit baffle, and the other end of the side clamping spring piece can be elastically pressed on the outer wall surface of the deep hole plate. This band guard device is through setting up can with deep hole board grafting complex adapter to set up the side card shell fragment that can take place to warp and elasticity support and press on the side wall board of deep hole board, thereby provide great chucking power for the deep hole board, even the great biological tissue sample of viscosity also is difficult to be taken up in the experiment in the deep hole board, has avoided the sample wall built-up phenomenon to take place, has reduced the risk of cross contamination that the sample cluster hole leads to.

Description

Anti-band plate device

Technical Field

The utility model relates to the technical field of medical auxiliary detection devices, in particular to a band guard device.

Background

The magnetic bar method is a common experimental operation for extracting RNA from biological tissue samples, wherein the biological tissue samples comprise saliva samples, blood samples, stool samples and the like, and different biological tissue samples are in different states, and compared with the saliva samples, the blood samples and the stool samples are sticky. The deep pore plate is a consumable material required for extracting RNA from a biological tissue sample, and in the process of extracting RNA from a blood sample, a fecal sample and other relatively viscous samples by adopting a magnetic rod method, one side or two sides of the deep pore plate filled with the biological tissue sample can be easily carried up when the sample reagent of the whole plate is uniformly mixed due to the viscous characteristics of the biological tissue sample, so that the sample is hung up, and the risk of cross contamination caused by sample serial holes is increased.

The existing band guard device for preventing the deep hole plate from being lifted up is mainly provided with a marble or a stop block to clamp the deep hole plate, so that not only is the clamping force limited, but also a certain effect can be achieved on the deep hole plate with lower viscosity such as saliva sample and the like, and the clamping requirement on the deep hole plate with higher viscosity such as blood sample and fecal sample and the like can not be met.

It is therefore an urgent need to solve the technical problem how to provide a band guard device capable of improving a large clamping force to meet the clamping requirement of a deep well plate with high viscosity such as blood sample and stool sample.

Disclosure of Invention

The utility model aims to provide a band guard device which can provide a large clamping force for a deep-hole plate, so that the deep-hole plate with high viscosity such as a blood sample and a fecal sample is not easy to lift up during experiments.

To achieve the purpose, the utility model adopts the following technical scheme:

a band guard apparatus for clamping a deep hole plate, the band guard apparatus comprising: the adapter, two chucking mechanism sets up respectively the both sides that the adapter set up relatively, the both sides that the adapter set up relatively are provided with at least one respectively chucking mechanism, chucking mechanism with form between the lateral wall face of adapter and allow deep hole board male space, chucking mechanism includes limit baffle and side card shell fragment, limit baffle is fixed to be set up one side of adapter, side card shell fragment set up in limit baffle with between the adapter, just the one end of side card shell fragment for limit baffle is fixed to be set up, the other end of side card shell fragment can elasticity support and press on the outer wall face of deep hole board.

Preferably, the anti-tape plate apparatus further includes a heating mechanism provided below the adapter and configured to heat the adapter.

Preferably, the anti-band plate device further comprises a heat conducting plate, the heat conducting plate is arranged between the heating mechanism and the adapter, and the limit baffle and the side clamping spring plate are fixedly connected to the side wall surface of the heat conducting plate.

Preferably, the heating mechanism is a heating film, and the heating film is adhered to the bottom surface of the heat conducting plate.

Preferably, two first limit grooves are formed in the side wall surface of the heat conducting plate at intervals, two ends of the limit baffle are respectively clamped in the two first limit grooves, and at least one part of the limit baffle is used for stopping the other end of the side clamping spring plate.

Preferably, a plurality of second limiting grooves are formed in the side wall surface of the heat conducting plate at intervals, each clamping mechanism comprises a plurality of side clamping elastic pieces, and the side clamping elastic pieces are clamped in the second limiting grooves in a one-to-one correspondence mode.

Preferably, the band guard device further comprises a temperature measuring mechanism, and the temperature measuring mechanism is used for measuring the temperature of the heat conducting plate.

Preferably, the waterproof board device further comprises a temperature protection switch, an elastic body and a base, wherein the base is arranged below the heating mechanism, the temperature protection switch is arranged in the base and is abutted to the heating mechanism, and the elastic body is arranged between the temperature protection switch and the base.

Preferably, the side clamping spring plate comprises a flat plate part and an arc-shaped part, wherein the flat plate part is connected to the side wall surface of the heat conducting plate, and the arc-shaped part is convexly arranged in the direction approaching to the adapter.

Preferably, the deep hole plate comprises a main body mechanism and a side wall plate which is circumferentially arranged around the main body mechanism and takes the shape of a ring, and the main body mechanism comprises a plurality of pipe bodies which are arranged in an array; the adapter comprises a plug block and a bottom plate, wherein the plug block is arranged on the top surface of the bottom plate and is provided with a plurality of plug holes; when the adapter is in plug-in fit with the deep hole plate, the pipe bodies are correspondingly inserted into the plug-in holes one by one, and the annular side wall plate is arranged around the periphery of the plug-in block and is stopped against the top surface of the bottom plate.

The utility model has the beneficial effects that:

the band guard device is used for clamping a deep hole plate, the band guard device comprises an adapter and at least two clamping mechanisms, the adapter can be in plug-in fit with the deep hole plate, at least one clamping mechanism is arranged on two opposite sides of the adapter, a space allowing the deep hole plate to be inserted is formed between the clamping mechanisms and the side wall surface of the adapter, the clamping mechanisms comprise limiting baffles and side clamping elastic pieces, the limiting baffles are fixedly arranged on one side of the adapter, the side clamping elastic pieces are arranged between the limiting baffles and the adapter, one ends of the side clamping elastic pieces are fixedly arranged relative to the limiting baffles, and the other ends of the side clamping elastic pieces can be elastically pressed against the outer wall surface of the deep hole plate. This band guard device is through setting up can with deep hole board grafting complex adapter to set up the side card shell fragment that can take place to warp and elasticity support and press on deep hole board, thereby can provide great chucking power for the deep hole board, even it is the great biological tissue sample of viscosity to make the deep hole inboard bear, also be difficult for taking place the phenomenon that deep hole board side was taken up when the experiment, avoided the sample wall built-up phenomenon to take place, reduced the risk of cross contamination that the sample cluster hole led to.

Drawings

Fig. 1 is a schematic view of a belt guard device provided in an embodiment of the present utility model;

fig. 2 is an exploded view of a belt guard device provided by an embodiment of the present utility model;

FIG. 3 is a top view of a belt guard device provided in an embodiment of the present utility model;

fig. 4 is a front view of a belt guard device provided by an embodiment of the present utility model;

FIG. 5 is a side view of a belt guard device provided in an embodiment of the present utility model;

FIG. 6 is a schematic view of a limit stop of a belt guard device according to an embodiment of the present utility model;

fig. 7 is a schematic diagram of a side clip of the anti-band plate device according to the embodiment of the utility model.

In the figure:

100. a band guard device;

110. an adapter; 111. a plug block; 112. a bottom plate; 113. a plug hole;

120. a clamping mechanism; 121. a limit baffle; 1211. a first vertical portion; 1212. a horizontal portion; 1213. a second vertical portion; 1214. a first connection hole; 122. a side clamping spring piece; 1221. a flat plate portion; 1222. an arc-shaped portion; 1223. a second connection hole;

130. a heating mechanism;

140. a heat conductive plate; 141. a first limit groove; 142. the second limit groove;

150. a temperature measuring mechanism;

160. a temperature protection switch; 170. an elastomer;

180. a base; 181. a mounting groove;

200. a deep well plate; 201. a side wall panel; 202. a tube body.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixed or removable, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 to 5, the present utility model provides a band guard device 100 for clamping a deep hole plate 200 such that a phenomenon that the side of the deep hole plate 200 is lifted up does not occur when an experiment is performed on a biological tissue sample in the deep hole plate 200. It should be noted that, the deep hole plate 200 includes a main body mechanism and a side wall plate 201 disposed circumferentially around the main body mechanism and having a ring shape, and the main body mechanism includes a plurality of tube bodies 202 arranged in an array. The deep hole plate 200 may be 96-well plate, 384-well plate, etc. according to the number of the tube bodies 202, the tube bodies 202 may be divided into V-shaped tube or U-shaped tube according to the bottom shape, the top parts of the plurality of tube bodies 202 are connected to each other, and the bottom parts of the plurality of tube bodies 202 are separated from each other.

Specifically, the anti-roll plate device 100 includes an adapter 110 and at least two clamping mechanisms 120. The adapter 110 can be in plug-in fit with the deep hole plate 200, at least one clamping mechanism 120 is respectively arranged on two sides of the opposite arrangement of the adapter 110, a space allowing the side wall plate 201 of the deep hole plate 200 to be inserted is formed between the clamping mechanism 120 and the side wall surface of the adapter 110, the clamping mechanism 120 comprises a limit baffle 121 and a side clamping spring piece 122, the limit baffle 121 is fixedly arranged on one side of the adapter 110, the side clamping spring piece 122 is arranged between the limit baffle 121 and the adapter 110, one end of the side clamping spring piece 122 is fixedly arranged relative to the limit baffle 121, the other end of the side clamping spring piece 122 can be elastically pressed on the outer wall surface of the side wall plate 201, and the limit baffle 121 can realize limit of the side clamping spring piece 122.

It should be noted that, the number of the clamping mechanisms 120 is at least two, and two, three, four or more clamping mechanisms 120 may be set according to the requirement, but two clamping mechanisms 120 are required to be respectively disposed on two opposite sides of the adapter 110 in the plurality of clamping mechanisms 120, so as to ensure that two opposite sides of the deep hole plate 200 are clamped, and other clamping mechanisms 120 may be disposed on adjacent sides of the two clamping mechanisms 120 or on the same side of the two clamping mechanisms 120, so that one side of the adapter 110 is provided with a plurality of clamping mechanisms 120.

The anti-band plate device 100 is in plug-in connection with the deep hole plate 200 through the arrangement of the adapter 110, so that stability of the deep hole plate 200 is improved. Before the deep hole plate 200 is not mounted to the adapter 110, the minimum distance between the position of the side clamping spring 122 and the side wall surface of the corresponding side of the adapter 110 is smaller than the thickness of the deep hole plate 200, in the process that the deep hole plate 200 is plugged into the adapter 110, the side wall plate 201 is extruded between the side clamping spring 122 and the adapter 110, the side clamping spring 122 can deform, and the side, far away from the adapter 110, of the side clamping spring 122 is limited by the limiting baffle 121, so that the side clamping spring 122 can elastically press against the side wall plate 201 of the deep hole plate 200, and accordingly larger clamping force can be provided for the deep hole plate 200, even though a biological tissue sample with larger viscosity such as a blood sample or a fecal sample is carried in the deep hole plate 200, the phenomenon that the side of the deep hole plate 200 is carried up is not easy to occur in the process of reagent mixing, the phenomenon that the sample wall is hung is avoided, and the risk of cross contamination caused by sample serial holes is reduced. Of course, the band guard device 100 may be used in other mechanisms besides the deep hole plate 200, and is not limited to the deep hole plate 200.

With continued reference to fig. 2, the adapter 110 includes a plug block 111 and a bottom plate 112, the plug block 111 being disposed on the top surface of the bottom plate 112, the plug block 111 having a size smaller than the size of the annular sidewall plate 201 of the deep hole plate 200 such that the plug block 111 can enter the inside of the annular sidewall plate 201, the bottom plate 112 having a size larger than the size of the plug block 111, and the bottom plate 112 having a size not smaller than the size of the annular sidewall plate 201. The plug block 111 is provided with a plurality of plug holes 113, and the number of the plug holes 113 is equal to that of the pipe bodies 202 of the deep hole plate 200 and the positions of the plug holes are in one-to-one correspondence. When the adaptor 110 is in plug-in fit with the deep hole plate 200, the plurality of pipe bodies 202 are inserted into the plurality of plug-in holes 113 in a one-to-one correspondence manner, and the annular side wall plate 201 is arranged around the circumference of the plug-in block 111 and abuts against the top surface of the bottom plate 112.

In some embodiments, the plug block 111 is cube-shaped and the bottom plate 112 is a rectangular plate.

As shown in fig. 7, the side snap piece 122 includes a flat plate portion 1221 and an arc portion 1222, the flat plate portion 1221 is fixedly connected to other structures, the arc portion 1222 is protruding toward the adapter 110, and the arc portion 1222 is used for elastically abutting against the side wall plate 201 of the deep hole plate 200. In some embodiments, the arcuate portion 1222 is semi-circular or quarter-circular.

In some embodiments, each clamping mechanism 120 includes a plurality of side clamping spring plates 122, and the plurality of side clamping spring plates 122 are spaced apart and limit by using the same limit baffle 121. The plurality of side snap pieces 122 can further improve the chucking force to the deep hole plate 200. With continued reference to fig. 2, the anti-roll-off device 100 includes two clamping mechanisms 120, each clamping mechanism 120 including two side snap tabs 122.

In some embodiments, the side wall plate 201 of the deep hole plate 200 is provided with a clamping groove or convex edge, and the arc 1222 of the side clamping spring 122 can be clamped into the clamping groove or clamped on the convex edge, so as to further improve clamping force on the deep hole plate 200.

With continued reference to fig. 2, the anti-roll plate device 100 further includes a heating mechanism 130, the heating mechanism 130 being disposed below the adapter 110 and configured to heat the adapter 110. In some embodiments, heating mechanism 130 is a heating membrane that, when energized, enables heating of adapter 110, thereby enabling heating of the biological tissue sample within deep-well plate 200 such that the biological tissue sample can react at a suitable temperature.

Further, the anti-band plate device 100 further includes a heat conductive plate 140, where the heat conductive plate 140 is disposed between the heating mechanism 130 and the adapter 110, and the heat conductive plate 140 is made of a material having good heat conductive properties, and the heat conductive plate 140 may be a metal plate, such as an aluminum plate. The heat conducting plate 140 can avoid the direct heating of the adapter 110 by the heating mechanism 130 and the uneven reaction temperature in different tube bodies 202 in the deep hole plate 200.

In some embodiments, the thermally conductive plate 140 is a rectangular plate, and the dimensions of the thermally conductive plate 140 are greater than the dimensions of the bottom plate 112 of the adapter 110.

In some embodiments, the heating mechanism 130 is a heating film that is adhered to the bottom surface of the heat conductive plate 140 by using a heat conductive adhesive.

In some embodiments, the thermally conductive plate 140 is fixedly attached to the adapter 110 by means including, but not limited to, screw attachment, welding, adhesive, etc.

With continued reference to fig. 4, the limit baffle 121 and the side clamping spring 122 are both fixedly connected to the side wall surface of the heat conducting plate 140, and the height of the limit baffle 121 and the side clamping spring 122 in the vertical direction is greater than the thickness of the heat conducting plate 140, so that the limit baffle 121 and the side clamping spring 122 are both protruded from the top surface of the heat conducting plate 140.

In some embodiments, to achieve quick positioning and assembling of the limit stop plate 121 and the heat conducting plate 140, two first limit grooves 141 are disposed on the side wall surface of the heat conducting plate 140 at intervals. As shown in fig. 6, the limit baffle 121 includes a first vertical portion 1211, a horizontal portion 1212 and a second vertical portion 1213 that are sequentially connected, where the first vertical portion 1211 and the second vertical portion 1213 are respectively clamped in the two first limit grooves 141, and the horizontal portion 1212 is used for stopping the other end of the side snap piece 122.

It should be noted that, when the number of the clamping mechanisms 120 is two, two first limiting grooves 141 are respectively provided on two side wall surfaces of the heat conducting plate 140 opposite to each other, and two vertical portions of the two limiting baffles 121 are respectively clamped in the two first limiting grooves 141 on the corresponding sides. When the number of the clamping mechanisms 120 is greater, the first limiting grooves 141 may be formed on the sidewall surface of the heat conductive plate 140 corresponding to the installation position of the clamping mechanism 120.

Further, first connection holes 1214 may be further provided on the first and second vertical portions 1211 and 1213, and screws may pass through the first connection holes 1214 and be fixed to the heat conductive plate 140 to further improve connection strength. Of course, in addition to screw connection, welding, bonding, etc. may be used to improve the connection strength.

In order to achieve rapid positioning and assembly of the heat conducting plate 140 and the side clamping spring 122, second limiting grooves 142 are formed in the side wall surface of the heat conducting plate 140 at intervals, and the flat plate portion 1221 of the side clamping spring 122 is clamped in the second limiting grooves 142. When the number of the side snap pieces 122 is plural, the number of the second limiting grooves 142 is plural, and the plurality of side snap pieces 122 are correspondingly clamped in the plurality of second limiting grooves 142.

Further, a second connection hole 1223 may be further provided on the flat plate portion 1221 of the side snap piece 122, and a screw may pass through the second connection hole 1223 and be fixed to the heat conductive plate 140 to further improve the connection strength. Of course, in addition to screw connection, welding, bonding, etc. may be used to improve the connection strength.

With continued reference to fig. 2, the anti-band plate apparatus 100 further includes a temperature measuring mechanism 150, where the temperature measuring mechanism 150 is configured to measure the temperature of the heat conducting plate 140, so as to monitor the temperature of the heat conducting plate 140. In some embodiments, the temperature measuring mechanism 150 is a temperature measuring sensor, and the heat conducting plate 140 is provided with a mounting hole, and the temperature measuring sensor is inserted into the mounting hole, so that temperature measurement is accurate.

With continued reference to fig. 2, the anti-band plate apparatus 100 further includes a temperature protection switch 160, an elastic body 170, and a base 180, the base 180 is disposed below the heating mechanism 130, the temperature protection switch 160 is disposed in the base 180 and abuts against the heating mechanism 130, and the elastic body 170 is disposed between the temperature protection switch 160 and the base 180 and causes the temperature protection switch 160 to have a tendency to move toward the heating mechanism 130.

The temperature measuring mechanism 150 can monitor the temperature change of the heat conducting plate 140, and the temperature protection switch 160 can control the heating mechanism 130 to stop heating after the heat conducting plate 140 exceeds the set temperature, so as to avoid the influence of overheat on experimental data. The elastic body 170 can make the temperature protection switch 160 completely close to the heat conducting plate 140, so as to realize reliable temperature protection. The base 180 can realize stable support of the entire belt guard device 100.

In some embodiments, the base 180 is a rectangular plate, and the size of the base 180 is the same as the size of the heat conductive plate 140. Further, the base 180 is attached to the heating plate by means including, but not limited to, screw attachment, adhesive bonding, welding, etc. Of course, the base 180 may also be used as an external structure for fixing the limit stop 121 and the side clip spring 122.

In some embodiments, the base 180 is provided with a stepped mounting groove 181, the mounting groove 181 penetrates through the top surface and one side wall surface of the base 180, and the temperature protection switch 160 is limited in the mounting groove 181.

In some embodiments, the elastic member is a coil spring, the coil spring is located in the mounting groove 181, and the bottom end of the coil spring is abutted with the bottom surface of the mounting groove 181, and the bottom end of the coil spring is abutted with the temperature protection switch 160. Of course, the elastic member may be a spring plate, a deformable jelly-like structure, or the like, in addition to the coil spring.

In this embodiment, the belt guard device 100 further includes a control mechanism that is capable of receiving the signal from the temperature measuring mechanism 150 and controlling the heating mechanism 130 via the temperature protection switch 160. The control mechanism may be a centralized or distributed controller, for example, the controller may be a single-chip microcomputer, or may be a distributed multi-chip microcomputer, where a control program may be run in the single-chip microcomputer, so as to control the temperature measuring mechanism 150, the temperature protection switch 160, and the heating mechanism 130 to implement functions thereof.

The belt guard device 100 has the following advantages:

1. the band guard device 100 ensures that the deep pore plate 200 filled with the viscous sample is not carried up in the process of extracting and mixing, the deep pore plate 200 cannot cause abnormal sound due to carrying up, the wall hanging phenomenon in the process of extracting and mixing is reduced, the probability of sample hole-crossing is greatly reduced, and the risk of cross contamination is reduced.

2. The band guard device 100 has simple and compact structural design, integrates a heating function, and realizes quick and reliable uniform mixing and extraction of viscous samples.

3. The anti-band plate device 100 is structurally convenient to integrate onto a standard plate position, and modular application is achieved.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (10)

1. A band guard device for clamping a deep hole plate (200), the band guard device comprising:

an adapter (110), the adapter (110) being capable of being mated with the deep-hole plate (200);

at least two chucking mechanism (120), two chucking mechanism (120) set up respectively the both sides that adapter (110) set up relatively, chucking mechanism (120) with form between the lateral wall face of adapter (110) and allow deep hole board (200) male space, chucking mechanism (120) are including limit baffle (121) and side card shell fragment (122), limit baffle (121) are fixed to be set up one side of adapter (110), side card shell fragment (122) set up in limit baffle (121) with between adapter (110), just one end of side card shell fragment (122) for limit baffle (121) are fixed to be set up, the other end of side card shell fragment (122) can elasticity butt be in on the outer wall face of deep hole board (200).

2. The belt guard device of claim 1, wherein,

the anti-tape board apparatus further comprises a heating mechanism (130), wherein the heating mechanism (130) is arranged below the adapter (110) and is used for heating the adapter (110).

3. The belt guard device as in claim 2, wherein,

the band guard device further comprises a heat conducting plate (140), the heat conducting plate (140) is arranged between the heating mechanism (130) and the adapter (110), and the limit baffle (121) and the side clamping spring piece (122) are fixedly connected to the side wall surface of the heat conducting plate (140).

4. The belt guard device as in claim 3, wherein,

the heating mechanism (130) is a heating film, and the heating film is adhered to the bottom surface of the heat conducting plate (140).

5. The belt guard device as in claim 3, wherein,

two first limit grooves (141) are formed in the side wall surface of the heat conducting plate (140) at intervals, two ends of the limit baffle (121) are respectively clamped in the two first limit grooves (141), and at least one part of the limit baffle (121) is used for stopping the other end of the side clamping spring piece (122).

6. The belt guard device as in claim 3, wherein,

a plurality of second limiting grooves (142) are formed in the side wall surface of the heat conducting plate (140) at intervals, each clamping mechanism (120) comprises a plurality of side clamping spring pieces (122), and the side clamping spring pieces (122) are clamped in the second limiting grooves (142) in a one-to-one correspondence mode.

7. The belt guard device as in claim 3, wherein,

the band guard device further comprises a temperature measuring mechanism (150), and the temperature measuring mechanism (150) is used for measuring the temperature of the heat conducting plate (140).

8. The belt guard device as in claim 7, wherein,

the belt guard device further comprises a temperature protection switch (160), an elastic body (170) and a base (180), wherein the base (180) is arranged below the heating mechanism (130), the temperature protection switch (160) is arranged in the base (180) and is abutted to the heating mechanism (130), and the elastic body (170) is arranged between the temperature protection switch (160) and the base (180).

9. The belt guard device as in claim 3, wherein,

the side clamping spring piece (122) comprises a flat plate part (1221) and an arc-shaped part (1222), wherein the flat plate part (1221) is connected to the side wall surface of the heat conducting plate (140), and the arc-shaped part (1222) is convexly arranged in the direction close to the adapter (110).

10. The belt guard device as in claim 3, wherein,

the deep hole plate (200) comprises a main body mechanism and a side wall plate (201) which is circumferentially arranged around the main body mechanism and takes the shape of a ring, wherein the main body mechanism comprises a plurality of tube bodies (202) which are arranged in an array;

the adapter (110) comprises a plug block (111) and a bottom plate (112), wherein the plug block (111) is arranged on the top surface of the bottom plate (112), and the plug block (111) is provided with a plurality of plug holes (113);

when the adapter (110) is in plug-in fit with the deep hole plate (200), a plurality of pipe bodies (202) are correspondingly inserted into the plug-in holes (113), and the annular side wall plate (201) is arranged around the circumference of the plug-in block (111) and is stopped on the top surface of the bottom plate (112).