Protective device for coal pile temperature measuring instrument

Abstract

The invention relates to the technical field of coal pile temperature measurement, in particular to a coal pile thermodetector protection device which comprises a protection mechanism which comprises a protection pipe, a sealing cover part arranged on the protection pipe, an installation part arranged on the protection pipe, an insertion part arranged on the protection pipe and an opening part arranged on the protection pipe. The clamping part is arranged in the protection tube, and the pin part is arranged on the mounting part. According to the coal pile thermodetector protection device, the thermodetector is protected through the protection pipe, the protection pipe is prevented from being broken and damaged, after the thermodetector is inserted into the protection pipe, the thermodetector is pushed to extrude the filtering part to relieve limiting of the pin part, the opening part is rotated to drive the sealing cover to rotate, and coal falls into the protection pipe, so that the temperature of the coal is measured; the probe is protected, it is guaranteed that the probe can be inserted into a sufficient depth for temperature measurement, and temperature measurement accuracy is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of coal pile temperature measurement, and in particular to a coal pile temperature measuring instrument protection device. Background Art

[0002] The coal stored in the coal yard of the thermal power plant needs to be measured every week. The thermometer model used is the SWK-2 coal pile thermometer. The temperature probe is 1.5 meters long. When measuring the temperature, the temperature probe needs to be inserted into the coal pile. Because the temperature probe is long and thin, you must be particularly careful when inserting it into the coal pile (especially the compacted coal pile), and keep trying to operate it. If the resistance is large, you must stop the operation to prevent the temperature probe from bending, deforming or even breaking, causing economic losses. In the long run, firstly, it will make it inconvenient for the staff to carry out the temperature measurement of the coal pile, affecting work efficiency; secondly, the insufficient insertion depth of the temperature probe will cause inaccurate temperature measurement data, and the temperature inside the coal pile cannot be accurately grasped, posing a safety hazard. Summary of the invention

[0003] In view of the above-mentioned problems existing in the existing coal pile temperature measuring instrument protection device, the present invention is proposed.

[0004] Therefore, the object of the present invention is to provide a coal pile temperature measuring instrument protection device, the purpose of which is to protect the temperature measuring probe.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: comprising:

[0006] The protection mechanism comprises a protection tube, a sealing portion provided on the protection tube, a mounting portion provided on the protection tube, an insertion portion provided on the protection tube, an opening portion provided on the protection tube, a clamping portion provided in the protection tube, and a pin portion provided on the mounting portion;

[0007] The linkage mechanism comprises a filter portion disposed in the protection tube, a linkage portion disposed between the filter portion and the clamping portion, and a telescopic portion disposed on the opening portion; and

[0008] Temperature measuring mechanism, including a thermometer.

[0009] As a preferred solution of the coal pile temperature measuring instrument protection device of the present invention, wherein: the sealing part includes a sealing cover arranged on the protection tube, and a material trough arranged on the protection tube and matched with the sealing cover;

[0010] The mounting portion includes a mounting bearing arranged on the protection tube, a mounting ring arranged on the protection tube and connected to the mounting bearing, and a rotating ring arranged on the protection tube, and the sealing cover is arranged between the mounting ring and the rotating ring.

[0011] As a preferred solution of the coal pile thermometer protection device described in the present invention, the insertion part includes an insertion head arranged at the end of the protection tube, a bevel ring arranged on the protection tube and located between the insertion head and the mounting bearing, and a bevel arc plate arranged on the cover and connected to the mounting ring.

[0012] As a preferred solution of the coal pile thermometer protection device of the present invention, the opening part includes a fixed ring arranged on the protection tube, a torsion spring arranged on the protection tube and located between the rotating ring and the fixed ring, and an opening handle arranged on the rotating ring.

[0013] As a preferred solution of the coal pile thermometer protection device described in the present invention, the clamping part includes a spring pin arranged in the protection tube, a clamping seat arranged on the spring pin, a clamping table arranged on the clamping seat, a clamping groove arranged on the clamping seat, a release groove arranged on the clamping seat and connected to the clamping groove, and a movable groove arranged in the protection tube and adapted to the clamping table.

[0014] As a preferred solution of the coal pile thermometer protection device of the present invention, the pin portion includes a pin column arranged in the mounting ring and adapted to the clamping groove, and a pin groove arranged on the protection tube and adapted to the pin column.

[0015] As a preferred solution of the coal pile thermometer protection device described in the present invention, the filter part includes a filter outer ring arranged in the protection tube, a filter inner plate arranged in the filter outer ring, a filter cloth arranged between the filter outer ring and the filter inner plate, and a filter mesh arranged between the filter outer ring and the filter inner plate.

[0016] As a preferred solution of the coal pile thermometer protection device described in the present invention, the linkage part includes a linkage slider arranged on the filter outer ring, a linkage slide groove arranged in the protection tube and adapted to the linkage slider, and a linkage rod arranged between the clamping table and the filter inner plate, and the linkage rod is arranged on the clamping table and located on the side away from the pin groove.

[0017] As a preferred solution of the coal pile thermometer protection device described in the present invention, the telescopic part includes a telescopic shell arranged on the fixed ring, a telescopic spring arranged in the telescopic shell, a telescopic tube arranged in the telescopic shell, a sealing block arranged in the telescopic tube, a slope arranged on the sealing block, and an insertion handle arranged on the telescopic shell.

[0018] As a preferred solution of the coal pile temperature measuring instrument protection device of the present invention, the temperature measuring instrument includes a temperature measuring handle, a hexagonal nut arranged on the temperature measuring handle and adapted to the sealing block, and a temperature measuring probe arranged on the hexagonal nut.

[0019] The beneficial effects of the present invention are as follows: the thermometer is protected by the protective tube to prevent the protective tube from breaking and being damaged; after the thermometer is inserted into the protective tube, the thermometer extrusion filter part is pushed to release the limit of the pin part, the rotating opening part drives the cover to rotate, and the coal falls into the protective tube, thereby measuring the temperature of the coal. The present invention not only protects the probe, but also ensures that the probe can be inserted to a sufficient depth for temperature measurement, thereby ensuring accurate temperature measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0021] Figure 1 It is a schematic diagram of the overall structure of the coal pile temperature measuring instrument protection device of the present invention.

[0022] Figure 2 It is a structural schematic diagram of the temperature measuring instrument of the protection device of the coal pile temperature measuring instrument of the present invention.

[0023] Figure 3 It is a schematic structural diagram of the sealing cover of the protection device for the coal pile temperature measuring instrument of the present invention.

[0024] Figure 4 It is a structural schematic diagram of the protection tube of the protection device of the coal pile temperature measuring instrument of the present invention.

[0025] Figure 5 The invention provides a protection device for a coal pile temperature measuring instrument. Figure 3 A local enlarged schematic diagram of point A in the middle.

[0026] Figure 6 The invention provides a protection device for a coal pile temperature measuring instrument. Figure 3 A local enlarged schematic diagram of point B in the middle.

[0027] Figure 7 It is a structural schematic diagram of the pin portion of the coal pile temperature measuring instrument protection device of the present invention.

[0028] Figure 8 It is a structural schematic diagram of the clamping part of the protection device of the coal pile temperature measuring instrument of the present invention.

[0029] Fig. 9 It is a structural schematic diagram of the filter part of the coal pile temperature measuring instrument protection device of the present invention.

[0030] Fig.10 It is a structural schematic diagram of the telescopic part of the coal pile temperature measuring instrument protection device of the present invention. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0032] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0034] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0035] Example 1

[0036] Reference Figures 1 to 8 , which is the first embodiment of the present invention, provides a coal pile temperature measuring instrument protection device, the device comprising:

[0037] The protection mechanism 100 includes a protection tube 101, a cover portion 102 disposed on the protection tube 101, a mounting portion 103 disposed on the protection tube 101, an insertion portion 104 disposed on the protection tube 101, an opening portion 105 disposed on the protection tube 101, a clamping portion 106 disposed in the protection tube 101, and a pin portion 107 disposed on the mounting portion 103;

[0038] The linkage mechanism 200 includes a filter portion 201 disposed in the protection tube 101, a linkage portion 202 disposed between the filter portion 201 and the clamping portion 106, and a telescopic portion 203 disposed on the opening portion 105; and

[0039] The temperature measuring mechanism 300 includes a temperature measuring instrument 301 .

[0040] During use, the telescopic part 203 is held by hand to insert the protection tube 101 into the coal pile, and the thermometer 301 is inserted into the protection tube 101. The thermometer 301 is pushed to drive the filter part 201 to move the linkage part 202. The linkage part 202 drives the clamping part 106 to contract, thereby releasing the limit on the pin part 107. The opening part 105 is rotated to drive the sealing part 102 to rotate the pin part 107. The sealing part 102 rotates to open the protection tube 101, and the coal enters the protection tube 101. The temperature of the coal pile is measured by the thermometer 301.

[0041] Example 2

[0042] Reference Figures 1 to 8 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that: the sealing portion 102 includes a sealing cover 102a arranged on the protection tube 101, and a material trough 102b arranged on the protection tube 101 and matched with the sealing cover 102a; wherein, the material trough 102b is semicircular, which is convenient for the entry of coal. If the material trough 102b is small, the coal may not be able to enter the protection tube 101. The sealing cover 102a is semicircular, which can block the material trough 102b. The material trough 102b can be fully opened by rotating 180 degrees to ensure the normal use of the device. When in use, the sealing cover 102a is vertically upward, and then the protection tube 101 is inserted into the coal pile. The coal can enter the protection tube 101 by gravity.

[0043] The mounting portion 103 includes a mounting bearing 103a disposed on the protective tube 101, a mounting ring 103b disposed on the protective tube 101 and connected to the mounting bearing 103a, and a rotating ring 103c disposed on the protective tube 101, and the cover 102a is disposed between the mounting ring 103b and the rotating ring 103c; wherein the mounting ring 103b is rotatably connected to the protective tube 101 through the mounting bearing 103a to ensure the stability of the cover 102a when rotating, and the mounting ring 103b is annular, so the mounting ring 103b can always cover the pin portion 107 to ensure the sealing of the device, and the rotating ring 103c is used to connect the other end of the cover 102a to ensure the stability of the cover 102a when rotating, and at the same time, the opening portion 105 can drive the cover 102a to rotate to ensure the normal operation of the device.

[0044] The insertion portion 104 includes an insertion head 104a arranged at the end of the protection tube 101, a bevel ring 104b arranged on the protection tube 101 and located between the insertion head 104a and the mounting bearing 103a, and a bevel arc plate 104c arranged on the cover 102a and connected to the mounting ring 103b; wherein, the insertion head 104a is designed to be pointed to reduce the resistance during insertion and facilitate insertion into the coal pile, the bevel ring 104b makes the vertical surface between the mounting bearing 103a and the insertion head 104a transition into a slope, reducing the resistance during insertion into the coal pile and facilitating insertion into the coal pile, the bevel ring 104b is fixedly arranged on the protection tube 101, and the bevel arc plate 104c is fixedly arranged on the mounting ring 103b to reduce the resistance when the device is pulled out.

[0045] The opening part 105 includes a fixed ring 105a arranged on the protective tube 101, a torsion spring 105b arranged on the protective tube 101 and located between the rotating ring 103c and the fixed ring 105a, and an opening handle 105c arranged on the rotating ring 103c; wherein, the fixed ring 105a is fixedly arranged on the protective tube 101, provides an installation position for the torsion spring 105b, and is also used for installing the telescopic part 203, one end of the torsion spring 105b is fixedly arranged on the rotating ring 103c, and the other end is fixedly arranged on the fixed ring 105a, through the arrangement of the torsion spring 105b, the torsion force of the torsion spring 105b can assist the staff in driving the cover 102a to rotate, and reduce the force of the staff when rotating the cover 102a, the opening handle 105c is fixedly arranged on the rotating ring 103c, and rotating the opening handle 105c can drive the rotating ring 103c to rotate the cover 102a, and a rubber layer is arranged on the opening handle 105c to increase friction.

[0046] The clamping part 106 includes a spring pin 106a disposed in the protection tube 101, a clamping seat 106b disposed on the spring pin 106a, a clamping truncated cone 106c disposed on the clamping seat 106b, a clamping groove 106d disposed on the clamping seat 106b, a release groove 106e disposed on the clamping seat 106b and connected to the clamping groove 106d, and a movable groove 106f disposed in the protection tube 101 and adapted to the clamping truncated cone 106c; wherein one end of the spring pin 106a is fixed to the end of the inner cavity of the protection tube 101, and the other end is fixedly connected to the clamping seat 106b, and the spring pin 106a is elastic. The force can reset the engaging table 106c. The setting of the engaging table 106c can make the pin 107a rotate to squeeze the inclined surface of the engaging table 106c so that the engaging table 106c shrinks along the spring pin 106a. The engaging groove 106d is a semicircular groove. The setting of the engaging groove 106d can limit the pin 107a. The setting of the disengagement groove 106e can make the engaging table 106c shrink and detach from the pin 107a, thereby releasing the limitation of the pin 107a and ensuring the normal use of the device. The central axis of the engaging table 106c is located above the central axis of the mounting ring 103b to ensure the normal use of the device.

[0047] The pin portion 107 includes a pin 107a disposed in the mounting ring 103b and adapted to the snap-in groove 106d, and a pin groove 107b disposed on the protective tube 101 and adapted to the pin 107a; wherein the pin 107a is fixedly disposed on the inner ring of the mounting ring 103b, and the pin groove 107b provides space for the pin 107a to rotate.

[0048] The remaining structures are the same as those of Example 1.

[0049] During use, after the protection tube 101 is inserted into the coal pile, the thermometer 301 is inserted into the protection tube 101, and the thermometer 301 is pushed to drive the filter part 201 to move the linkage part 202, and the linkage part 202 drives the clamping table 106c to shrink the spring pin 106a, and at the same time, the clamping table 106c moves to make the pin 107a move away from the clamping table 106c along the clamping groove 106d and the release groove 106e, thereby releasing the limit on the pin 107a, and turning the opening handle 105c to drive the rotating ring 103c to rotate the cover 102a, and the cover 102a drives the installation ring 103b to rotate the pin 107a along the pin groove 107b, and the cover 102a rotates to open the material trough 102b, and the coal enters the protection tube 101 through the material trough 102b, and the temperature of the coal pile is measured by the thermometer 301.

[0050] Example 3

[0051] Reference Figure 2 and Figures 6 to 10, which is the third embodiment of the present invention, and this embodiment is different from the second embodiment in that: the filter unit 201 includes a filter outer ring 201a arranged in the protection tube 101, a filter inner plate 201b arranged in the filter outer ring 201a, a filter cloth 201c arranged between the filter outer ring 201a and the filter inner plate 201b, and a filter net 201d arranged between the filter outer ring 201a and the filter inner plate 201b; wherein the filter outer ring 201a is slidably arranged in the protection tube 101, the filter inner plate 201b is located inside the filter outer ring 201a, and the filter cloth 201c is arranged between the filter outer ring 201a and the filter inner plate 201b. The filter screen 201d is fixedly connected between the filter outer ring 201a and the filter inner plate 201b. The filter screen 201d and the filter cloth 201c are used to filter coal to prevent coal from entering, thereby preventing the device from getting stuck. When the linkage slide groove 202b slides along the protective tube 101, the air in the protective tube 101 needs to be discharged, otherwise the air pressure will cause the filter part 201 to be unable to slide. Therefore, the setting of the filter screen 201d can provide air circulation and ensure the sliding of the filter part 201, thereby ensuring the normal use of the device.

[0052] The linkage part 202 includes a linkage slider 202a arranged on the filter outer ring 201a, a linkage slide 202b arranged in the protection tube 101 and adapted to the linkage slider 202a, and a linkage rod 202c arranged between the clamping truncated cone 106c and the filter inner plate 201b, wherein the linkage slider 202a is fixedly arranged on the outer surface of the filter outer ring 201a, and the linkage slide 202b is arranged on the inner surface of the protection tube 101, so as to increase the sliding of the filter outer ring 201a. The linkage rod 202c is used to connect the filter part 201 and the clamping part 106, so that the movement of the filter part 201 can push the clamping table 106c to contract, so that the pin 107a can be released from the limit when the thermometer 301 is inserted, which is convenient for operation. The linkage rod 202c is arranged on one side of the surface of the clamping table 106c, and the pin groove 107b is arranged on one side of the surface of the protective tube 101. The linkage rod 202c is opposite to the pin groove 107b, so that the pin 107a will not be stuck with the linkage rod 202c when it rotates along the pin groove 107b, thereby ensuring the normal use of the device.

[0053] The telescopic part 203 includes a telescopic shell 203a disposed on the fixing ring 105a, a telescopic spring 203b disposed in the telescopic shell 203a, a telescopic tube 203c disposed in the telescopic shell 203a, a sealing block 203d disposed in the telescopic tube 203c, a slope 203e disposed on the sealing block 203d, and an insertion handle 203f disposed on the telescopic shell 203a; wherein, when the protection tube 101 is inserted into the coal pile and the cover 102a is opened, the hot gas in the coal pile flows out through the protection tube 101, and the hexagonal nut 301b is engaged with the sealing block 203d, which can Prevent hot air from escaping, thereby preventing scalding of the staff and increasing the safety of the device. The telescopic shell 203a is fixedly set on the fixing ring 105a, the telescopic spring 203b is set in the telescopic shell 203a, and the telescopic tube 203c is slidably set on the telescopic shell 203a. The sealing block 203d is adapted to the hexagonal nut 301b, and the inner surface of the sealing block 203d is provided with a rubber layer to increase the sealing performance. The setting of the slope 203e facilitates the insertion of the temperature measuring probe 301c and prevents the temperature measuring probe 301c from abutting against the end face of the sealing block 203d, thereby increasing the smoothness of the device during installation.

[0054] The thermometer 301 includes a temperature measuring handle 301a, a hexagonal nut 301b arranged on the temperature measuring handle 301a and compatible with the sealing block 203d, and a temperature measuring probe 301c arranged on the hexagonal nut 301b; wherein, the temperature measuring probe 301c is 1.5 meters long, so the distance between the filter inner plate 201b and the sealing block 203d is 1.5 meters, which can not only ensure the fit between the hexagonal nut 301b and the sealing block 203d to prevent the outflow of hot air, but also push the temperature measuring handle 301a to make the end of the temperature measuring probe 301c squeeze the filter inner plate 201b, thereby releasing the limit on the pin 107a and ensuring the normal use of the device.

[0055] The remaining structure is the same as that of Example 2.

[0056] During use, after the protection tube 101 is inserted into the coal pile, the thermometer 301 is inserted into the protection tube 101, and the hexagonal nut 301b is stuck in the sealing block 203d to prevent hot air from overflowing. The thermometer 301 is pushed, and the temperature measuring handle 301a squeezes the telescopic tube 203c to shrink the telescopic spring 203b. At the same time, the end of the temperature measuring probe 301c squeezes the filter inner plate 201b to move the filter screen 201d. The filter screen 201d drives the filter outer ring 201a to move the linkage slider 202a along the linkage slide groove 202b. When the filter outer ring 201a moves, the air between the filter inner plate 201b and the protection tube 101 flows out through the filter screen 201d, ensuring the sliding of the filter inner plate 201b At the same time, the filter inner plate 201b drives the linkage rod 202c to move the clamping table 106c, and the clamping table 106c pushes the spring pin 106a to contract. At the same time, the clamping table 106c moves to make the pin 107a move away from the clamping table 106c along the clamping groove 106d and the escape groove 106e, thereby releasing the limit on the pin 107a, turning the opening handle 105c to drive the rotating ring 103c to rotate the cover 102a, and the cover 102a drives the installation ring 103b to rotate the pin 107a along the pin groove 107b, and the cover 102a rotates to open the trough 102b, and the coal enters the protection tube 101 through the trough 102b, and the temperature of the coal pile is measured by the thermometer 301.

[0057] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0058] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0059] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A coal pile temperature measuring instrument protection device, characterized in that: include, A protection mechanism (100) comprises a protection tube (101), a sealing portion (102) arranged on the protection tube (101), a mounting portion (103) arranged on the protection tube (101), an insertion portion (104) arranged on the protection tube (101), an opening portion (105) arranged on the protection tube (101), a clamping portion (106) arranged inside the protection tube (101), and a pin portion (107) arranged on the mounting portion (103); A linkage mechanism (200) comprises a filter portion (201) disposed in the protection tube (101), a linkage portion (202) disposed between the filter portion (201) and the clamping portion (106), and a telescopic portion (203) disposed on the opening portion (105); and, The temperature measuring mechanism (300) comprises a temperature measuring instrument (301).

2. The coal pile temperature measuring instrument protection device according to claim 1 is characterized in that: The sealing portion (102) comprises a sealing cover (102a) arranged on the protection tube (101), and a material trough (102b) arranged on the protection tube (101) and matched with the sealing cover (102a); The mounting portion (103) comprises a mounting bearing (103a) arranged on the protective tube (101), a mounting ring (103b) arranged on the protective tube (101) and connected to the mounting bearing (103a), and a rotating ring (103c) arranged on the protective tube (101); the sealing cover (102a) is arranged between the mounting ring (103b) and the rotating ring (103c).

3. The coal pile temperature measuring instrument protection device according to claim 2 is characterized in that: The insertion portion (104) comprises an insertion head (104a) arranged at the end of the protection tube (101), a bevel ring (104b) arranged on the protection tube (101) and located between the insertion head (104a) and the mounting bearing (103a), and a bevel arc plate (104c) arranged on the cover (102a) and connected to the mounting ring (103b).

4. The coal pile temperature measuring instrument protection device according to claim 3 is characterized in that: The opening portion (105) comprises a fixed ring (105a) arranged on the protection tube (101), a torsion spring (105b) arranged on the protection tube (101) and located between the rotating ring (103c) and the fixed ring (105a), and an opening handle (105c) arranged on the rotating ring (103c).

5. The coal pile temperature measuring instrument protection device according to claim 4 is characterized in that: The clamping portion (106) comprises a spring pin (106a) arranged in the protective tube (101), a clamping seat (106b) arranged on the spring pin (106a), a clamping truncated cone (106c) arranged on the clamping seat (106b), a clamping groove (106d) arranged on the clamping seat (106b), a release groove (106e) arranged on the clamping seat (106b) and connected to the clamping groove (106d), and a movable groove (106f) arranged in the protective tube (101) and adapted to the clamping truncated cone (106c).

6. The coal pile temperature measuring instrument protection device according to claim 5, characterized in that: The pin portion (107) comprises a pin column (107a) arranged in the mounting ring (103b) and matched with the clamping groove (106d), and a pin groove (107b) arranged on the protection tube (101) and matched with the pin column (107a).

7. The coal pile temperature measuring instrument protection device according to claim 6 is characterized in that: The filter unit (201) comprises a filter outer ring (201a) arranged in the protection tube (101), a filter inner plate (201b) arranged in the filter outer ring (201a), a filter cloth (201c) arranged between the filter outer ring (201a) and the filter inner plate (201b), and a filter net (201d) arranged between the filter outer ring (201a) and the filter inner plate (201b).

8. The coal pile temperature measuring instrument protection device according to claim 7 is characterized in that: The linkage part (202) comprises a linkage slider (202a) arranged on the filter outer ring (201a), a linkage groove (202b) arranged in the protection tube (101) and adapted to the linkage slider (202a), and a linkage rod (202c) arranged between the clamping truncated cone (106c) and the filter inner plate (201b); the linkage rod (202c) is arranged on the clamping truncated cone (106c) and is located on a side away from the pin groove (107b).

9. The coal pile temperature measuring instrument protection device according to claim 8, characterized in that: The telescopic portion (203) comprises a telescopic shell (203a) arranged on the fixing ring (105a), a telescopic spring (203b) arranged in the telescopic shell (203a), a telescopic tube (203c) arranged in the telescopic shell (203a), a sealing block (203d) arranged in the telescopic tube (203c), a slope (203e) arranged on the sealing block (203d), and an insertion handle (203f) arranged on the telescopic shell (203a).

10. The coal pile temperature measuring instrument protection device according to claim 9, characterized in that: The temperature measuring instrument (301) comprises a temperature measuring handle (301a), a hexagonal nut (301b) arranged on the temperature measuring handle (301a) and matched with the sealing block (203d), and a temperature measuring probe (301c) arranged on the hexagonal nut (301b).

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