Intelligent explosion-proof high-temperature melt pressure transmitter

Abstract

The utility model 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 utility model relates to pressure transmitter technical field, concretely is a kind of intelligent explosion-proof high temperature melt pressure transmitter. BACKGROUND

[0002] High temperature melt pressure transmitter is a kind of sensing equipment for measuring 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 melt into an electrical signal by the built-in sensing element, and then to 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 accurate control of melt pressure.

[0003] When installing the pressure transmitter, it is important to ensure that the sensing diaphragm measurement plane is tangent to the pipe inner diameter, and the installation force is critical. The installation torque of the transmitter can only act on the hexagonal shaft. If the sensing diaphragm measurement plane is not tangent to the pipe inner diameter, the transmission of melt pressure is hindered, resulting in slower transmission of pressure signals to the transmitter. This will increase the response time of the transmitter and affect the real-time monitoring and regulation functions of the system. Therefore, it is necessary to ensure that the sensing diaphragm measurement plane is tangent to the pipe inner diameter every time the transmitter is repaired and installed to ensure accurate transmission of pressure signals. If the alignment is not correct, it will cause measurement errors, so accurate alignment is required when reinstalling, which increases the operation time and reduces the efficiency of the repair. SUMMARY

[0004] (I) Technical problem solved

[0005] To solve the problems of the prior art, the utility model provides an intelligent explosion-proof high temperature melt pressure transmitter, which solves the problem of accurate alignment required to ensure that the sensing diaphragm measurement plane is tangent to the pipe inner diameter every time the transmitter is repaired and installed to avoid measurement errors, which increases the operation time and reduces the efficiency of the repair.

[0006] (II) Technical solution

[0007] To achieve the above purpose, the utility model provides the following technical scheme: an intelligent explosion-proof high temperature melt pressure transmitter, comprising: an output end for outputting the electrical signal after pressure conversion and temperature compensation to an external device; a connection cable for connecting and transmitting the electrical signal; a sensor end for sensing external pressure and converting it into an electrical signal; a tightening mechanism for preventing the sensor end from being over-tightened; a protection mechanism for providing a positioning for the installation of the sensor end; a lubricating mechanism for providing lubricating oil every time the sensor end rotates.

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

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

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

[0011] Preferably, the outer wall of the trapezoidal block one is slidably connected with the inner wall of the square groove, a plurality of triangular prisms are arranged, and the triangular prisms are arranged in a circumferential array.

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

[0013] Preferably, the outer wall of the trapezoidal block two is piston-connectedly connected with the inner wall of the sliding groove, and an inclined surface is arranged at the top of the trapezoidal block two.

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

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

[0016] (Three) beneficial effects

[0017] Compared with the prior art, this utility model provides an intelligent explosion-proof high-temperature melt pressure transmitter, which has the following advantages:

[0018] 1. This intelligent explosion-proof high-temperature melt pressure transmitter utilizes a protective mechanism. The protective cover's contact with the tank wall ensures a stable installation position, while the threaded rod's contact with the tank's outer wall prevents further tightening of the protective cover, avoiding the protective cover being twisted when tightening the installation threads. The sensing diaphragm is tangent to the inner wall of the tank, eliminating the need for complex installation procedures and ensuring accurate alignment of the sensing diaphragm plane. This facilitates subsequent disassembly and maintenance, improving the convenience and efficiency of equipment maintenance.

[0019] 2. This intelligent explosion-proof high-temperature melt pressure transmitter utilizes a tightening mechanism to prevent over-tightening, allowing for stable installation of the sensor without the need for a professional torque wrench, further improving maintenance efficiency.

[0020] 3. This intelligent explosion-proof high-temperature melt pressure transmitter utilizes a lubrication mechanism. Lubricating oil is injected into the oil inlet frame. Pressing the connecting handle moves the sealing disc downwards, which injects lubricating oil through a one-way valve into the cylindrical cavity and the oil storage chamber. Then, when the mounting thread at the bottom of the explosion-proof rod rotates, the mounting thread abuts against and drives the spherical block to rotate. During the rotation of the spherical block, the lubricating oil in the cylindrical cavity is applied to the mounting thread. This is similar to the principle of a ballpoint pen, allowing the mounting thread to self-lubricate during installation and disassembly, further simplifying the maintenance process. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of an intelligent explosion-proof high-temperature melt pressure transmitter proposed in this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of a trapezoidal block of an intelligent explosion-proof high-temperature melt pressure transmitter proposed in this utility model;

[0023] Figure 3 This is a schematic diagram of the cross-sectional structure of the hollow hexagonal prism in an intelligent explosion-proof high-temperature melt pressure transmitter proposed in this utility model.

[0024] Figure 4 This is a schematic diagram of the sensor end of an intelligent explosion-proof high-temperature melt pressure transmitter proposed in this utility model;

[0025] Figure 5 This is a cross-sectional structural diagram of a protective cover for an intelligent explosion-proof high-temperature melt pressure transmitter proposed in this utility model.

[0026] Figure 6 The utility model provides an intelligent explosion -proof high temperature melt pressure transmitter Figure 5 The enlarged structure schematic view of A in the middle;

[0027] Figure 7 The utility model provides an intelligent explosion -proof high temperature melt pressure transmitter screw rod piece's structure schematic view.

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

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0030] Please refer to Figures 1-7 An intelligent explosion -proof high temperature melt pressure transmitter, comprising: an output end 1 for outputting electrical signals converted by pressure conversion and temperature compensation to external equipment; a connecting cable 2 for connecting and transmitting electrical signals; a sensor end 3 for sensing external pressure and converting it into electrical signals, which are then transmitted to the output end 1 through the connecting cable 2; a tightening mechanism 4 for preventing the sensor end 3 from being excessively tightened, ensuring firm assembly and avoiding damage to the sensor; a protection mechanism 5 for providing positioning for the installation of the sensor end 3, so that installation after maintenance can be completed without precise operation each time, ensuring that the sensor end 3 is positioned correctly and operates stably; a lubricating mechanism 6 for providing lubricating oil when the sensor end 3 rotates each time, reducing friction, ensuring smooth rotation of the sensor end 3 and prolonging service life; one end of the 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 with the sensor end 3.

[0031] The sensor end 3 comprises an explosion-proof rod body 31 made of stainless steel, which mainly enhances the strength and durability of the structure, so that the explosion-proof rod body 31 can effectively resist explosions or violent reactions that may occur in high-pressure environments, and ensure the stability and long-term reliability of the sensor. The use of stainless steel material ensures excellent corrosion resistance, and can maintain 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 mainly facilitates the fixed connection of the explosion-proof rod body 31 with other components, ensuring that the explosion-proof rod body 31 can be firmly installed at the predetermined position during use, thereby providing stable support and protection, preventing components from loosening or falling off due to vibration or external force. At the same time, the threaded design also facilitates 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, which mainly transmits external pressure to the sensor end 3, so that the sensing diaphragm 33 deforms under the action of pressure. Through the deformation of the sensing diaphragm 33, the pressure changes in the external environment can be effectively sensed and transmitted to the pressure sensor, thereby realizing the detection and conversion of pressure signals. This design helps to protect the sensor from direct contact with external pressure sources, while ensuring the accuracy and stability of pressure measurement.

[0032] The surface of the sensor end 3 is provided with a tightening mechanism 4, which comprises a square groove 42 opened on the inner wall of the explosion-proof rod body 31. 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 with a trapezoidal block 44. The outer wall of the explosion-proof rod body 31 is rotatably connected with a hollow hexagonal prism 45, and the inner wall of the hollow hexagonal prism 45 is fixedly connected with a triangular prism 46. The outer wall of the trapezoidal block 44 is slidably connected with the inner wall of the square groove 42, so that the trapezoidal block 44 stably reciprocates on the inner wall of the square groove 42. The triangular prism 46 is provided with a plurality of triangular prisms 46 arranged in a circumferential array. When the tightening mechanism 4 tightens the sensor end 3, rotating the hollow hexagonal prism 45 drives the triangular prism 46 to rotate clockwise. When the triangular prism 46 rotates clockwise, the inclined surface of the trapezoidal block 44 is contacted by 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 acting on the spring 43. At this time, the force acting on 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 comprises a bottom inclined surface 51 arranged at the bottom of the explosion-proof rod body 31, an outer wall of the explosion-proof rod body 31 is provided with a protection cover 52, an inner wall of the protection cover 52 is provided with an inner threaded channel 53, a bottom of the inner threaded 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, one end of a spring two 56 is fixedly connected to the inner wall of the sliding groove 55, the other end of the spring two 56 is fixedly connected with a trapezoidal block two 57, the inner wall of the protection cover 52 is threadedly connected with a threaded rod 58, the outer wall of the trapezoidal block two 57 is piston-connected with the inner wall of the sliding groove 55, the top of the trapezoidal block two 57 is provided with an inclined surface, the trapezoidal block two 57 is in contact with each other under the action of the spring two 56 to form a seal when not in use, the sensor end 3 is protected, when in use, the sensor end 3 is moved downward to contact the inclined surface to separate the two trapezoidal block two 57. When in use, the protection cover 52 is installed with the tank wall to be detected, so that the bottom plane of the protection cover 52 is tangent to the inner wall plane of the tank wall, then the threaded rod 58 is rotated and moved downward, so that the threaded rod 58 is in contact with the outer wall of the tank wall, so that the protection cover 52 is limited and cannot be further tightened. The installation thread 32 is threadedly connected with the inner threaded channel 53, so that the bottom inclined surface 51 is in contact with the connecting inclined surface 54, at this time, the set sensing diaphragm 33 is flush with the bottom plane of the protection cover 52, and the plane of the sensing diaphragm 33 is tangent to the inner wall plane of the tank wall.

[0034] The lubricating mechanism 6 comprises an oil storage cavity 61, which is formed on the inner wall of the protective cover 52, one end of a spring 62 is fixedly connected to the inner wall of the oil storage cavity 61, the other end of the spring 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 65 is fixedly connected to the inner wall of the cylindrical cavity 64, the other end of the spring 65 is fixedly connected to a positioning piece 66, 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 610 is formed 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, 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 cavity 61, so that the disc block 63 extrudes the oil in the oil storage cavity 61 under the action of the spring 62, the oil in the oil storage cavity 61 has a certain pressure, and the outer wall of the sealing disc 611 is piston-connected to the inner wall of the oil inlet frame 69. Lubricating oil is injected into the oil inlet frame 69, 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, and then when the mounting thread 32 at the bottom of the explosion-proof rod body 31 rotates, the mounting thread 32 abuts against the spherical block 67 to drive the spherical block 67 to rotate, so that the lubricating oil in the cylindrical cavity 64 is stained on the mounting thread 32 in the process of rotation of the spherical block 67.

[0035] In summary, the intelligent explosion-proof high-temperature melt pressure transmitter is used, the protective cover 52 is installed with the tank wall to be detected, the bottom plane of the protective cover 52 is tangent to the inner wall plane of the tank wall, then the threaded rod 58 is rotated and moved downward, the threaded rod 58 abuts against the outer wall of the tank wall, and the protective cover 52 is limited and cannot be further tightened.

[0036] At this time, the mounting thread 32 is threadedly connected with the internal thread channel 53, the bottom inclined surface 51 abuts against the connecting inclined surface 54, at this time, the bottom plane of the protective cover 52 is flush with the sensing diaphragm 33, 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 normally completed without complex operation, and the sensor end 3 is convenient to disassemble and overhaul. The main function of the design is to simplify the installation and disassembly process of the intelligent explosion-proof high-temperature melt pressure transmitter. The plane contact between the protective cover 52 and the tank wall ensures the stable installation position, 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 the protective cover 52 is prevented from being rotated when the mounting thread 32 is tightened. The plane of the sensing diaphragm 33 is tangent to the inner wall plane of the tank wall, so that the installation process does not need complex operation, the plane of the sensing diaphragm 33 is accurately aligned, and the subsequent disassembly and overhaul of the equipment are facilitated, and the convenience and operation efficiency of equipment maintenance are improved.

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

[0038] The lubricating oil is injected into the oil inlet frame 69, 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, and then when the mounting thread 32 at the bottom of the explosion-proof rod body 31 rotates, the mounting thread 32 is contacted to drive the spherical block 67 to rotate, so that the lubricating oil in the cylindrical cavity 64 is contaminated on the mounting thread 32 in the process of rotating the spherical block 67, which is similar to the principle of a ball pen, so that the mounting thread 32 can be self-lubricated in the process of mounting and dismounting, further simplifying the maintenance steps.

[0039] It should be noted that, in the present document, the terms such as first and second, etc. are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between such entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover a non-exclusive inclusion, so that a process, method, article or apparatus that includes a list of elements does not only include those elements, but also includes other elements not explicitly listed, or further includes elements inherent in such process, method, article or apparatus. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of additional identical elements in the process, method, article or apparatus that includes the element.

Claims

1. A smart explosion-proof high temperature melt pressure transmitter characterized by: The utility model relates to a pressure sensor, which comprises: an output end (1) for outputting an electrical signal converted by pressure conversion and temperature compensation to an external device; a connecting cable (2) for connecting and transmitting the electrical signal; 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 excessively tightened; a protection mechanism (5) for providing a position for the installation of the sensor end (3); and a lubricating mechanism (6) for providing lubricating oil every time the sensor end (3) is rotated.

2. The intelligent explosion-proof high temperature melt pressure transmitter of claim 1, wherein: One end of the 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 the sensor end (3).

3. The intelligent explosion-proof high temperature melt pressure transmitter of claim 2, wherein: The sensor end (3) comprises an explosion-proof rod body (31), and the outer wall of the explosion-proof rod body (31) is provided with a mounting thread (32).

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

5. The intelligent explosion-proof high temperature melt pressure transmitter of claim 4, wherein: The outer wall of the trapezoidal block (44) is slidably connected to the inner wall of the square groove (42), and the triangular prism (46) is arranged in a circumferential array.

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

7. The intelligent explosion-proof high temperature melt pressure transmitter of claim 6, wherein: The outer wall of the trapezoidal block (57) is pistonically connected to the inner wall of the sliding groove (55), and the top of the trapezoidal block (57) is provided with an inclined surface.

8. The intelligent explosion-proof high temperature melt pressure transmitter of claim 6, wherein: The lubricating mechanism (6) includes an oil storage cavity (61) which is opened on the inner wall of the protective cover (52), one end of the 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 with the disc block (63), the cylindrical cavity (64) is opened on the inner wall of the protective cover (52), one end of the 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 with the positioning piece (66), the spherical block (67) is arranged on the inner wall of the cylindrical cavity (64), the one-way valve (68) is fixedly connected to the inner wall of the protective cover (52), the oil inlet frame (69) is threadedly connected to the top of the protective cover (52), the oil inlet (610) is opened on the outer wall of the oil inlet frame (69), the connecting handle (612) is slidably connected to the inner wall of the oil inlet frame (69), and the sealing disc (611) is fixedly connected to the bottom of the connecting handle (612).

9. The intelligent explosion-proof high temperature melt pressure transmitter of claim 8, wherein: The outer wall of the disc block (63) is piston-connected to the inner wall of the oil storage cavity (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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