Intelligent explosion-proof high-temperature melt pressure transmitter

Abstract

The invention relates to the technical field of pressure transmitters, and discloses an intelligent explosion-proof high-temperature melt pressure transmitter, which comprises an output end used for outputting an electric signal subjected to pressure conversion and temperature compensation to external equipment; the connecting cable is used for connecting and transmitting electric signals; and the sensor end is used for sensing external pressure and converting the external pressure into an electric signal. According to the intelligent explosion-proof high-temperature melt pressure transmitter, the protection mechanism is arranged, a stable installation position is ensured through plane contact between the protection cover and the tank wall, further tightening of the protection cover is prevented through contact between a threaded rod piece and the outer wall of the tank wall, and the situation that the protection cover is screwed when installation threads are tightened is avoided; the induction diaphragm is tangent to the inner wall plane of the tank wall, so that complex operation is not needed in the installation process, meanwhile, accurate alignment of the plane of the induction diaphragm is kept, follow-up disassembly and overhaul of equipment are facilitated, and convenience and operation efficiency of equipment maintenance are improved.

Description

Technical Field

[0001] The invention relates to the technical field of pressure transmitters, in particular to an intelligent explosion-proof high-temperature melt pressure transmitter. Background Art

[0002] High temperature melt pressure transmitter is a sensing device used to measure the pressure of high temperature melt (such as plastic, rubber and other high temperature materials). Its working principle is to convert the pressure signal of the melt into an electrical signal through the built-in sensitive element, and then monitor and control the pressure. It is usually made of high temperature resistant materials to ensure stability and accuracy under high temperature conditions. Application scenarios include plastic extrusion, rubber processing, chemical industry and other industrial fields that require precise control of melt pressure.

[0003] When installing the pressure transmitter, it is important to note that the sensing diaphragm measuring plane of the transmitter is tangent to the inner diameter of the pipe, and the force of installation is crucial. The installation torque of the transmitter can only act on the hexagonal axis. If the sensing diaphragm measuring plane is not tangent to the inner diameter of the pipe, the transmission of the melt pressure is hindered, resulting in a slower speed at which the pressure signal is transmitted to the transmitter. This will increase the response time of the transmitter and affect the real-time monitoring and adjustment functions of the system. Therefore, every time you overhaul and reinstall it, you must ensure that the sensing diaphragm measuring plane is tangent to the inner diameter of the pipe to ensure accurate transmission of the pressure signal. Improper alignment will cause measurement errors, so precise alignment must be performed when reinstalling, which increases the operation time of the overhaul and reduces the efficiency of the overhaul. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides an intelligent explosion-proof high-temperature melt pressure transmitter, which solves the problem that each time the pressure transmitter is overhauled and reinstalled, it is necessary to ensure that the measuring plane of the sensing diaphragm is tangent to the inner diameter of the pipeline to avoid measurement errors. This precise alignment requirement increases the operation time and reduces the maintenance efficiency.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an intelligent explosion-proof high-temperature melt pressure transmitter, comprising: an output end, used to output an electrical signal after pressure conversion and temperature compensation to an external device; a connecting cable, used to connect and transmit electrical signals; a sensor end, used to sense external pressure and convert it into an electrical signal; a tightening mechanism, used to prevent the sensor end from being over-tightened; a protective mechanism, used to provide a positioning for the installation of the sensor end; a lubricating mechanism, which provides lubricating oil every time the sensor end rotates.

[0008] Preferably, one end of a connecting cable is fixedly connected to the outer wall of the output end, and the other end of the connecting cable is fixedly connected to the sensor end.

[0009] Preferably, the sensor end comprises an explosion-proof rod body, an outer wall of the explosion-proof rod body is provided with a mounting thread, and a sensing diaphragm is fixedly connected to the outer wall of the explosion-proof rod body.

[0010] Preferably, a tightening mechanism is provided on the surface of the sensor end, and the tightening mechanism includes a square groove, and the square groove is opened on the inner wall of the explosion-proof rod body, one end of a spring 1 is fixedly connected to the inner wall of the square groove, and the other end of the spring 1 is fixedly connected to a trapezoidal block 1, and the outer wall of the explosion-proof rod body is rotatably connected to a hollow hexagonal prism, and the inner wall of the hollow hexagonal prism is fixedly connected to a triangular prism.

[0011] Preferably, the outer wall of the trapezoidal block 1 is slidably connected to the inner wall of the square groove, and a plurality of triangular prisms are provided, and the triangular prisms are arranged in a circular array.

[0012] Preferably, the protective mechanism includes a bottom inclined surface, which is arranged at the bottom of the explosion-proof rod body, a protective cover is arranged on the outer wall of the explosion-proof rod body, an internal threaded channel is opened on the inner wall of the protective cover, a connecting inclined surface is arranged at the bottom of the internal threaded channel, a sliding groove is opened on the inner wall of the protective cover, one end of spring 2 is fixedly connected to the inner wall of the sliding groove, the other end of the spring 2 is fixedly connected to trapezoidal block 2, and the inner wall of the protective cover is threadedly connected to a threaded rod.

[0013] Preferably, the outer wall of the trapezoidal block 2 is piston-connected to the inner wall of the sliding groove, and the top of the trapezoidal block 2 is provided with an inclined surface.

[0014] Preferably, the lubrication mechanism includes an oil storage cavity, which is provided on the inner wall of the protective cover, one end of a spring three is fixedly connected to the inner wall of the oil storage cavity, the other end of the spring three is fixedly connected to a disc block, a cylindrical cavity is provided on the inner wall of the protective cover, one end of a spring four is fixedly connected to the inner wall of the cylindrical cavity, the other end of the spring four is fixedly connected to a positioning piece, a spherical block is provided on the inner wall of the cylindrical cavity, a one-way valve is fixedly connected to the inner wall of the protective cover, an oil inlet frame is threadedly connected to the top of the protective cover, an oil inlet port is provided on the outer wall of the oil inlet frame, a connecting handle is slidably connected to the inner wall of the oil inlet frame, and a sealing disc is fixedly connected to the bottom of the connecting handle.

[0015] Preferably, the outer wall of the disc block is connected to the inner wall piston of the oil storage cavity, and the outer wall piston of the sealing disc is connected to the inner wall of the oil inlet frame.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the present invention provides an intelligent explosion-proof high-temperature melt pressure transmitter, which has the following beneficial effects:

[0018] 1. This intelligent explosion-proof high-temperature melt pressure transmitter uses a protective mechanism to ensure a stable installation position through the contact between the protective cover and the tank wall, while the contact between the threaded rod and the outer wall of the tank wall prevents the protective cover from being further tightened, avoiding the protective cover from being twisted when the installation thread is tightened. The sensing diaphragm is tangent to the inner wall plane of the tank wall, so that the installation process does not require complicated operations, while maintaining the accurate alignment of the sensing diaphragm plane, which facilitates the subsequent disassembly and maintenance of the equipment, and improves the convenience and operation efficiency of equipment maintenance.

[0019] 2. The intelligent explosion-proof high-temperature melt pressure transmitter uses a tightening mechanism to prevent over-tightening. The sensor end can be stably fixed and installed without a professional torque wrench, further improving maintenance efficiency.

[0020] 3. The intelligent explosion-proof high-temperature melt pressure transmitter uses a lubrication mechanism to inject lubricating oil into the oil inlet frame, press the connection handle to drive the sealing disc to move downward, and the sealing disc moves downward to inject the lubricating oil into the cylindrical cavity and the oil storage cavity through the one-way valve. Then, when the mounting thread at the bottom of the explosion-proof rod body rotates, the mounting thread conflicts and drives the spherical block to rotate, so that the lubricating oil in the cylindrical cavity is contaminated onto the mounting thread during the rotation of the spherical block. This is similar to the principle of a ballpoint pen, so that the mounting thread can be self-lubricated during the installation and disassembly process, further simplifying the maintenance steps. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of an intelligent explosion-proof high-temperature melt pressure transmitter proposed by the present invention;

[0022] Figure 2 This is a structural schematic diagram of a trapezoidal block 1 of an intelligent explosion-proof high-temperature melt pressure transmitter proposed by the present invention;

[0023] Figure 3 A schematic diagram of the cross-sectional structure of a hollow hexagonal prism of an intelligent explosion-proof high-temperature melt pressure transmitter proposed by the present invention;

[0024] Figure 4 This is a structural schematic diagram of a sensor end of an intelligent explosion-proof high-temperature melt pressure transmitter proposed by the present invention;

[0025] Figure 5 A schematic cross-sectional structure diagram of a protective cover of an intelligent explosion-proof high-temperature melt pressure transmitter proposed by the present invention;

[0026] Figure 6An intelligent explosion-proof high-temperature melt pressure transmitter proposed by the present invention Figure 5 A schematic diagram of the enlarged structure at A in the middle;

[0027] Figure 7 This is a structural schematic diagram of a threaded rod of an intelligent explosion-proof high-temperature melt pressure transmitter proposed by the present invention.

[0028] In the figure: 1. output end; 2. connecting cable; 3. sensor end; 31. explosion-proof rod body; 32. mounting thread; 33. induction diaphragm; 4. tightening mechanism; 42. square groove; 43. spring one; 44. trapezoidal block one; 45. hollow hexagonal prism; 46. triangular prism; 5. protection mechanism; 51. bottom oblique surface; 52. protective cover; 53. internal thread channel; 54. connecting oblique surface; 55. sliding groove; 56. spring two; 57. trapezoidal block two; 58. threaded rod; 6. lubrication mechanism; 61. oil storage chamber; 62. spring three; 63. disc block; 64. cylindrical cavity; 65. spring four; 66. positioning piece; 67. spherical block; 68. one-way valve; 69. oil inlet frame; 610. oil inlet; 611. sealing disc; 612. connecting handle. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] See also Figure 1-Figure 7 , an intelligent explosion-proof high-temperature melt pressure transmitter, comprising: an output terminal 1, used to output an electrical signal after pressure conversion and temperature compensation to an external device; a connecting cable 2, used to connect and transmit electrical signals; a sensor terminal 3, used to sense external pressure and convert it into an electrical signal, and then transmit it to the output terminal 1 through the connecting cable 2; a tightening mechanism 4, used to prevent the sensor terminal 3 from being over-tightened, ensure a firm assembly and avoid damage to the sensor; a protective mechanism 5, used to provide a positioning for the installation of the sensor terminal 3, so that the installation after maintenance can be completed without precise operation each time, ensuring that the sensor terminal 3 is correctly positioned and maintains stable operation; a lubricating mechanism 6, which provides lubricating oil every time the sensor terminal 3 rotates, reduces friction, ensures that the sensor terminal 3 rotates smoothly and prolongs its service life. The outer wall of the output terminal 1 is fixedly connected to one end of the connecting cable 2, and the other end of the connecting cable 2 is fixedly connected to the sensor terminal 3.

[0031] The sensor end 3 includes an explosion-proof rod body 31, which is made of stainless steel. The main function is to enhance the strength and durability of the structure, so that the explosion-proof rod body 31 can effectively resist the explosion or violent reaction that may occur in a high-pressure environment, and ensure the stability and long-term reliability of the sensor. The use of stainless steel ensures that it has excellent corrosion resistance and can maintain a good working condition in various industrial environments. The outer wall of the explosion-proof rod body 31 is provided with a mounting thread 32, which is mainly used to facilitate the fixed connection between the explosion-proof rod body 31 and other components to ensure that the explosion-proof rod body 31 is used during use. The explosion-proof rod body 31 can be firmly installed in a predetermined position, thereby providing stable support and protection to prevent the components from loosening or falling off due to vibration or external force. At the same time, the threaded design is also convenient for disassembly and installation when maintenance or replacement is required. The outer wall of the explosion-proof rod body 31 is fixedly connected with a sensing diaphragm 33, whose main function is to transmit the external pressure to the sensor end 3, so that the sensing diaphragm 33 is deformed under the pressure. Through the deformation of the sensing diaphragm 33, the pressure changes of the external environment can be effectively sensed, and these changes are transmitted to the pressure sensor, thereby realizing the detection and conversion of the pressure signal. This design helps to protect the sensor from the influence of direct contact with the external pressure source, while ensuring the accuracy and stability of the pressure measurement.

[0032] A tightening mechanism 4 is provided on the surface of the sensor end 3, and the tightening mechanism 4 includes a square groove 42, and the square groove 42 is opened on the inner wall of the explosion-proof rod body 31, and one end of a spring 43 is fixedly connected to the inner wall of the square groove 42, and the other end of the spring 43 is fixedly connected to a trapezoidal block 44, and the outer wall of the explosion-proof rod body 31 is rotatably connected to a hollow hexagonal prism 45, and a triangular prism 46 is fixedly connected to the inner wall of the hollow hexagonal prism 45, and the outer wall of the trapezoidal block 44 is slidably connected to the inner wall of the square groove 42, so that the trapezoidal block 44 can stably reciprocate on the inner wall of the square groove 42, and a plurality of triangular prisms 46 are provided, and the triangular prisms 46 are arranged in a circular array. When the sensor end 3 is tightened by the tightening mechanism 4, the hollow hexagonal prism 45 is rotated to drive the triangular prism 46 to rotate clockwise. When the triangular prism 46 rotates clockwise, the inclined surface contacts the inclined surface of the trapezoidal block 44. At this time, the inclined surface of the trapezoidal block 44 is subjected to an inclined force, which can be decomposed into a circumferential force and a force toward the spring 43. At this time, the force toward the spring 43 is not enough to compress the spring 43. At this time, the trapezoidal block 44 rotates clockwise, and the trapezoidal block 44 drives the explosion-proof rod body 31 and the mounting thread 32 to rotate and tighten. When the mounting thread 32 is tightened to a certain extent, the spring 43 is compressed, and the trapezoidal block 44 is retracted into the inner wall of the explosion-proof rod body 31. At this time, the trapezoidal block 44 is no longer driven to rotate by the triangular prism 46.

[0033] The protection mechanism 5 includes a bottom inclined surface 51, which is arranged at the bottom of the explosion-proof rod body 31. A protective cover 52 is arranged on the outer wall of the explosion-proof rod body 31. An internal threaded channel 53 is provided on the inner wall of the protective cover 52. A connecting inclined surface 54 is provided at the bottom of the internal threaded channel 53. A sliding groove 55 is provided on the inner wall of the protective cover 52. One end of a spring 2 56 is fixedly connected to the inner wall of the sliding groove 55. A trapezoidal block 2 57 is fixedly connected to the other end of the spring 2 56. A threaded rod 58 is threadedly connected to the inner wall of the protective cover 52. The outer wall of the trapezoidal block 2 57 is piston-connected to the inner wall of the sliding groove 55. An inclined surface is provided on the top of the trapezoidal block 2 57. When not in use, the trapezoidal blocks 2 57 contact each other under the action of the spring 2 56 to form a seal, thereby protecting the sensor end 3. When in use, the sensor end 3 moves downward to contact the inclined surface so that the two trapezoidal blocks 2 57 are separated from each other. When in use, the protective cover 52 is first installed on the tank wall to be inspected, so that the bottom plane of the protective cover 52 is tangent to the inner wall plane of the tank wall, and then the threaded rod 58 is rotated to move downward, so that the threaded rod 58 contacts the outer wall of the tank wall, so that the protective cover 52 is limited and cannot be further tightened. The installation thread 32 is threadedly connected with the internal thread channel 53, so that the bottom oblique surface 51 and the connecting oblique surface 54 contact each other. At this time, according to the setting, the sensing diaphragm 33 is flush with the bottom plane of the protective cover 52, and the plane of the sensing diaphragm 33 is tangent to the inner wall plane of the tank wall.

[0034] The lubrication mechanism 6 includes an oil storage chamber 61, which is provided on the inner wall of the protective cover 52. One end of a spring 3 62 is fixedly connected to the inner wall of the oil storage chamber 61, and a disc block 63 is fixedly connected to the other end of the spring 3 62. A cylindrical cavity 64 is provided on the inner wall of the protective cover 52, and one end of a spring 4 65 is fixedly connected to the inner wall of the cylindrical cavity 64, and a positioning member 66 is fixedly connected to the other end of the spring 4 65. A spherical block 67 is provided on the inner wall of the cylindrical cavity 64, and a one-way valve 6 is fixedly connected to the inner wall of the protective cover 52. 8. The top of the protective cover 52 is threadedly connected to an oil inlet frame 69, and an oil inlet port 610 is opened on the outer wall of the oil inlet frame 69. A connecting handle 612 is slidably connected to the inner wall of the oil inlet frame 69, and a sealing disc 611 is fixedly connected to the bottom of the connecting handle 612. The outer wall of the disc block 63 is piston-connected to the inner wall of the oil storage chamber 61, so that the disc block 63 squeezes the oil in the oil storage chamber 61 under the action of the spring three 62, so that the oil in the oil storage chamber 61 has a certain pressure, and the outer wall piston of the sealing disc 611 is connected to the inner wall of the oil inlet frame 69. The lubricating oil is injected into the oil inlet frame 69, and the connecting handle 612 is pressed to drive the sealing disc 611 to move downward. The sealing disc 611 moves downward to inject the lubricating oil into the cylindrical cavity 64 and the oil storage cavity 61 through the one-way valve 68. Then, when the mounting thread 32 at the bottom of the explosion-proof rod body 31 rotates, the mounting thread 32 resists and drives the spherical block 67 to rotate, so that the lubricating oil in the cylindrical cavity 64 is contaminated onto the mounting thread 32 during the rotation of the spherical block 67.

[0035] To sum up, when using the intelligent explosion-proof high-temperature melt pressure transmitter, first install the protective cover 52 on the tank wall that needs to be detected, so that the bottom plane of the protective cover 52 is tangent to the inner wall plane of the tank wall, and then rotate the threaded rod 58 to move downward, so that the threaded rod 58 contacts the outer wall of the tank wall, so that the protective cover 52 is limited and cannot be further tightened.

[0036] At this time, the installation thread 32 is threadedly connected with the internal thread channel 53, so that the bottom oblique surface 51 and the connecting oblique surface 54 conflict with each other. At this time, the sensing diaphragm 33 is set to be flush with the bottom plane of the protective cover 52, and the plane of the sensing diaphragm 33 is tangent to the inner wall plane of the tank wall, so that the installation can be completed normally without complicated operations, which is convenient for the disassembly and maintenance of the sensor end 3. The main function of this design is to simplify the installation and disassembly process of the intelligent explosion-proof high-temperature melt pressure transmitter. The contact between the protective cover 52 and the tank wall plane ensures a stable installation position, while the contact between the threaded rod 58 and the outer wall of the tank wall prevents the protective cover 52 from being further tightened, and avoids twisting the protective cover 52 when tightening the installation thread 32. The sensing diaphragm 33 is tangent to the inner wall plane of the tank wall, so that the installation process does not require complicated operations, while keeping the plane of the sensing diaphragm 33 accurately aligned, which is convenient for the subsequent disassembly and maintenance of the equipment, and improves the convenience and operation efficiency of equipment maintenance.

[0037] When the sensor end 3 is tightened by the tightening mechanism 4, the hollow hexagonal prism 45 is rotated to drive the triangular prism 46 to rotate clockwise. When the triangular prism 46 rotates clockwise, the inclined surface contacts the inclined surface of the trapezoidal block 44. At this time, the inclined surface of the trapezoidal block 44 is subjected to an inclined force, which can be decomposed into a circumferential force and a force toward the spring 43. At this time, the force toward the spring 43 is not enough to compress the spring 43. At this time, the trapezoidal block 44 rotates clockwise, and the trapezoidal block 44 drives the explosion-proof rod body 31 and the mounting thread 32 to rotate and tighten. When the mounting thread 32 is tightened to a certain extent, the spring 43 is compressed, and the trapezoidal block 44 is retracted into the inner wall of the explosion-proof rod body 31. At this time, the trapezoidal block 44 is no longer driven to rotate by the triangular prism 46, which plays a role in preventing over-tightening. The sensor end 3 can be stably fixed and installed without a professional torque wrench, thereby further improving the maintenance efficiency.

[0038] The lubricating oil is injected into the oil inlet frame 69, and the connecting handle 612 is pressed to drive the sealing disc 611 to move downward. The sealing disc 611 moves downward to inject the lubricating oil into the cylindrical cavity 64 and the oil storage cavity 61 through the one-way valve 68. Then, when the mounting thread 32 at the bottom of the explosion-proof rod body 31 rotates, the mounting thread 32 resists and drives the spherical block 67 to rotate, so that the lubricating oil in the cylindrical cavity 64 is contaminated onto the mounting thread 32 during the rotation of the spherical block 67. This is similar to the principle of a ballpoint pen, so that the mounting thread 32 can be self-lubricated during the installation and disassembly process, further simplifying the maintenance steps.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

Claims

1. An intelligent explosion-proof high-temperature melt pressure transmitter, characterized in that: include: An output terminal (1) is used to output the electrical signal after pressure conversion and temperature compensation to an external device; A connecting cable (2) for connecting and transmitting electrical signals; A sensor end (3) for sensing external pressure and converting it into an electrical signal; A tightening mechanism (4) for preventing the sensor end (3) from being over-tightened; A protection mechanism (5) for providing a positioning for the installation of the sensor end (3); The lubrication mechanism (6) provides lubrication oil every time the sensor end (3) rotates.

2. The intelligent explosion-proof high-temperature melt pressure transmitter according to claim 1, characterized in that: One end of a connecting cable (2) is fixedly connected to the outer wall of the output end (1), and the other end of the connecting cable (2) is fixedly connected to a sensor end (3).

3. The intelligent explosion-proof high-temperature melt pressure transmitter according to claim 2 is characterized in that: The sensor end (3) comprises an explosion-proof rod body (31), the outer wall of the explosion-proof rod body (31) is provided with a mounting thread (32), and the outer wall of the explosion-proof rod body (31) is fixedly connected with a sensing diaphragm (33).

4. The intelligent explosion-proof high-temperature melt pressure transmitter according to claim 3 is characterized in that: The surface of the sensor end (3) is provided with a tightening mechanism (4), the tightening mechanism (4) comprising a square groove (42), the square groove (42) being formed on the inner wall of the explosion-proof rod body (31), one end of a spring (43) being fixedly connected to the inner wall of the square groove (42), the other end of the spring (43) being fixedly connected to a trapezoidal block (44), the outer wall of the explosion-proof rod body (31) being rotatably connected to a hollow hexagonal prism (45), the inner wall of the hollow hexagonal prism (45) being fixedly connected to a triangular prism (46).

5. The intelligent explosion-proof high-temperature melt pressure transmitter according to claim 4 is characterized in that: The outer wall of the trapezoidal block 1 (44) is slidably connected to the inner wall of the square groove (42), and a plurality of triangular prisms (46) are provided, and the triangular prisms (46) are arranged in a circular array.

6. The intelligent explosion-proof high-temperature melt pressure transmitter according to claim 4, characterized in that: The protection mechanism (5) comprises a bottom inclined surface (51), the bottom inclined surface (51) is arranged at the bottom of the explosion-proof rod body (31), the outer wall of the explosion-proof rod body (31) is provided with a protection cover (52), the inner wall of the protection cover (52) is provided with an internal thread channel (53), the bottom of the internal thread channel (53) is provided with a connecting inclined surface (54), the inner wall of the protection cover (52) is provided with a sliding groove (55), the inner wall of the sliding groove (55) is fixedly connected with one end of a second spring (56), the other end of the second spring (56) is fixedly connected with a second trapezoidal block (57), and the inner wall of the protection cover (52) is threadedly connected with a threaded rod (58).

7. The intelligent explosion-proof high-temperature melt pressure transmitter according to claim 6 is characterized in that: The outer wall of the second trapezoidal block (57) is piston-connected to the inner wall of the sliding groove (55), and a slope is provided on the top of the second trapezoidal block (57).

8. The intelligent explosion-proof high-temperature melt pressure transmitter according to claim 6, characterized in that: The lubricating mechanism (6) comprises an oil storage cavity (61), the oil storage cavity (61) is formed on the inner wall of the protective cover (52), one end of a spring three (62) is fixedly connected to the inner wall of the oil storage cavity (61), the other end of the spring three (62) is fixedly connected to a disc block (63), a cylindrical cavity (64) is formed on the inner wall of the protective cover (52), one end of a spring four (65) is fixedly connected to the inner wall of the cylindrical cavity (64), the other end of the spring four (65) is fixedly connected to the inner wall of the cylindrical cavity (64), A positioning piece (66) is fixedly connected to the cylindrical cavity (64); a spherical block (67) is arranged on the inner wall of the cylindrical cavity (64); a one-way valve (68) is fixedly connected to the inner wall of the protective cover (52); an oil inlet frame (69) is threadedly connected to the top of the protective cover (52); an oil inlet port (610) is provided on the outer wall of the oil inlet frame (69); a connecting handle (612) is slidably connected to the inner wall of the oil inlet frame (69); and a sealing disc (611) is fixedly connected to the bottom of the connecting handle (612).

9. The intelligent explosion-proof high-temperature melt pressure transmitter according to claim 8, characterized in that: The outer wall of the disc block (63) is piston-connected to the inner wall of the oil storage chamber (61), and the outer wall of the sealing disc (611) is piston-connected to the inner wall of the oil inlet frame (69).

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