阅读说明：本技术 一种可避免震动造成间隙的温度变送器用传感器连接结构 (Sensor connecting structure for temperature transmitter capable of avoiding gap caused by vibration ) 是由 张煜 单海啸 于 2021-07-22 设计创作，主要内容包括：本发明公开了一种可避免震动造成间隙的温度变送器用传感器连接结构,包括设备内壁和与其固定的承托壳,所述设备内壁和承托壳通过穿过垫片的螺丝连接,所述设备内壁和承托壳之间设置有内密封圈和外密封圈,所述承托壳内部设有测温探头,所述测温探头的外侧套设有橡胶块,所述橡胶块与压件贴紧,所述压件背向橡胶块的一侧设有弹簧,所述弹簧背向压件的一端与顶壳接触,所述顶壳与承托壳螺纹连接,所述顶壳与承托壳螺纹连接,所述顶壳内的测温探头上套设有消震圈,所述设备内壁中开有壁中孔,所述壁中孔和锥形的壁锥孔连通。该可避免震动造成间隙的温度变送器用传感器连接结构,可避免震动造成的间隙,适合普遍推广使用。(The invention discloses a sensor connecting structure for a temperature transmitter, which can avoid a gap caused by vibration, and comprises an equipment inner wall and a bearing shell fixed with the equipment inner wall, wherein the equipment inner wall and the bearing shell are connected through a screw penetrating through a gasket, an inner sealing ring and an outer sealing ring are arranged between the equipment inner wall and the bearing shell, a temperature measuring probe is arranged in the bearing shell, a rubber block is sleeved on the outer side of the temperature measuring probe, the rubber block is tightly attached to a pressing piece, a spring is arranged on one side of the pressing piece, which is back to the rubber block, one end of the spring, which is back to the pressing piece, is contacted with a top shell, the top shell is in threaded connection with the bearing shell, a shock absorbing ring is sleeved on the temperature measuring probe in the top shell, a wall middle hole is formed in the equipment inner wall, and the wall middle hole is communicated with a conical wall conical hole. This can avoid vibrations to cause sensor connection structure for temperature transmitter in clearance can avoid vibrations to cause the clearance, is fit for generally using widely.)

1. The utility model provides a can avoid vibrations to cause sensor connection structure for temperature transmitter in clearance, includes equipment inner wall (1) and rather than fixed bearing shell (4), equipment inner wall (1) and bearing shell (4) are connected through screw (6) that pass gasket (5), be provided with between equipment inner wall (1) and bearing shell (4) interior sealing washer (2) and outer sealing washer (3), its characterized in that:

the bearing shell (4) is internally provided with a temperature measuring probe (7), the outer side of a probe plate (701) on the excircle of the temperature measuring probe (7) is sleeved with a rubber block (8), the rubber block (8) is tightly attached to a pressing piece (9), one side of the pressing piece (9) back to the rubber block (8) is provided with a spring (10), one end of the spring (10) back to the pressing piece (9) is in contact with a top shell (11), the top shell (11) is in threaded connection with the bearing shell (4), and a shock absorbing ring (12) is sleeved on the temperature measuring probe (7) in the top shell (11).

2. The sensor connecting structure for a temperature transmitter capable of avoiding a gap caused by vibration according to claim 1, wherein: a wall middle hole (101) is formed in the inner wall (1) of the device, the wall middle hole (101) is communicated with a conical wall taper hole (102), a concentric wall inner ring groove (103) and a wall outer ring groove (104) are formed in the outer side of the wall middle hole (101), and wall threaded holes (105) distributed in an annular array mode are formed in the outer side of the wall outer ring groove (104).

3. The sensor connecting structure for a temperature transmitter capable of avoiding a gap caused by vibration according to claim 2, wherein: the bearing shell is characterized in that a shell plate (402) is arranged at one end of the bearing shell (4), shell external threads (401) are arranged on the outer circle of the other end of the bearing shell (4), a middle plate hole (403) is formed in the circle center of the shell plate (402), a concentric inner plate ring groove (404) and a concentric outer plate ring groove (405) are formed in the end face, back to the bearing shell (4), of the shell plate (402), and plate edge holes (406) distributed in an annular array are formed in the outer edge of the shell plate (402).

4. The sensor connection structure for a temperature transmitter capable of avoiding a gap caused by vibration according to claim 3, wherein: the screw (6) penetrates through a gasket (5) and a plate edge hole (406) to enter a wall threaded hole (105), the position of a plate outer ring groove (405) corresponds to a wall outer ring groove (104), the position of a plate inner ring groove (404) corresponds to a wall inner ring groove (103), the outer sealing ring (3) is located inside the wall outer ring groove (104) and the plate outer ring groove (405), the inner sealing ring (2) is located inside the wall inner ring groove (103) and the plate inner ring groove (404), the inner sealing ring (2) is fixedly bonded inside the plate inner ring groove (404), and the outer sealing ring (3) is fixedly bonded inside the plate outer ring groove (405).

5. The sensor connecting structure for a temperature transmitter capable of avoiding a gap caused by vibration according to claim 1, wherein: the temperature measuring probe (7) is externally provided with a round plate-shaped probe plate (701), a block inner cavity (801) is formed in the rubber block (8), and the probe plate (701) is located in the block inner cavity (801) in the rubber block (8).

6. The sensor connecting structure for a temperature transmitter capable of avoiding a gap caused by vibration according to claim 5, wherein: one end face of the rubber block (8) is in contact with a shell plate (402) in the bearing shell (4), the other end face of the rubber block (8) is in contact with a pressing piece (9), the outline of the pressing piece (9) is in a circular plate shape, and the pressing piece (9) is provided with a tubular pressing barrel (901) which is in an integrated structure with the pressing barrel.

7. The sensor connecting structure for a temperature transmitter capable of avoiding a gap caused by vibration according to claim 6, wherein: the outer fringe of top shell (11) is equipped with top outer tube (1102), the inner wall of top outer tube (1102) is equipped with the screw thread, the inward flange of top shell (11) is equipped with top inner tube (1101), top outer tube (1102) parcel is outside at bearing shell (4), the screw thread of top outer tube (1102) inner wall and the shell external screw thread (401) interlock of bearing shell (4) excircle, be equipped with spring (10) between casting die (9) and top inner tube (1101), a pot head of spring (10) is established at pressure section of thick bamboo (901) outside, another pot head of spring (10) is established at top inner tube (1101) outside.

8. The sensor connecting structure for a temperature transmitter capable of avoiding a gap caused by vibration according to claim 1, wherein: the profile of the shock absorption ring (12) is in a tire shape, the outer circle of the shock absorption ring (12) is provided with an outer ring layer (1201), the inner circle of the shock absorption ring (12) is provided with an inner ring layer (1202), the outer ring layer (1201) and the inner ring layer (1202) are formed by Kevlar cloth, the space inside the shock absorption ring (12) is provided with a separation layer (1203) distributed in an annular array mode, the separation layer (1203) divides the inner space of the shock absorption ring (12) into a plurality of compartments, elastic pieces are arranged inside the compartments, and air blocks (1204) are arranged inside the separation layer (1203).

9. The sensor connecting structure for a temperature transmitter capable of avoiding a gap caused by vibration according to claim 8, wherein: the shock absorption ring (12) is filled with lubricating grease, the ring inner layer (1202) is sleeved outside the temperature measuring probe (7), and the ring outer layer (1201) is propped against the inner wall of the jacking inner tube (1101) of the top shell (11).

10. The sensor connecting structure for a temperature transmitter capable of avoiding a gap caused by vibration according to claim 1, wherein: and the edge of the pressing piece (9) is subjected to fillet treatment.

Technical Field

The invention belongs to the technical field of temperature transmitters, and particularly relates to a sensor connecting structure for a temperature transmitter, which can avoid a gap caused by vibration.

Background

The temperature transmitter adopts a thermocouple and a thermal resistor as temperature measuring elements, the output signals of the temperature measuring elements are sent to a transmitter module, and the output signals are converted into digital signals to be output after being processed by circuits such as voltage stabilizing filtering, operational amplification, nonlinear correction, V/I conversion, constant current and reverse protection, and the like.

The sensor of current temperature transmitter often adopts rigid connection when being connected with equipment under test, and is more typically to adopt screw or buckle to connect, and the problem that takes off appears comparatively easily when equipment under test shakes in the sensor that this kind of connection scheme connects, and current sealing scheme adopts seal gasket usually, and this kind of connection scheme's sealed effect is comparatively general, and the clearance appears comparatively easily and leads to sealing the inefficacy.

Disclosure of Invention

The present invention is directed to a sensor connection structure for a temperature transmitter, which can avoid a gap caused by vibration, so as to solve the problems in the related art.

In order to achieve the purpose, the invention provides the following technical scheme: a sensor connecting structure for a temperature transmitter capable of avoiding a gap caused by vibration comprises an equipment inner wall and a bearing shell fixed with the equipment inner wall, wherein the equipment inner wall is connected with the bearing shell through a screw penetrating through a gasket, and an inner sealing ring and an outer sealing ring are arranged between the equipment inner wall and the bearing shell;

the bearing shell is internally provided with a temperature measuring probe, the outer side of a probe plate on the excircle of the temperature measuring probe is sleeved with a rubber block, the rubber block is tightly attached to a pressing piece, one side of the pressing piece, back to the rubber block, is provided with a spring, one end of the spring, back to the pressing piece, is in contact with a top shell, the top shell is in threaded connection with the bearing shell, and a shock absorbing ring is sleeved on the temperature measuring probe in the top shell.

Preferably, a wall central hole is formed in the inner wall of the device, the wall central hole is communicated with a conical wall taper hole, concentric wall inner ring grooves and wall outer ring grooves are formed in the outer side of the wall central hole, and wall threaded holes distributed in an annular array are formed in the outer side of the wall outer ring groove.

Preferably, a shell plate is arranged at one end of the bearing shell, shell external threads are arranged on the excircle of the other end of the bearing shell, a center hole is formed in the circle center of the shell plate, a concentric inner ring groove and a concentric outer ring groove are formed in the end face, back to the bearing shell, of the shell plate, and plate edge holes distributed in an annular array are formed in the outer edge of the shell plate.

Preferably, the screw penetrates through the gasket and the plate edge hole to enter the wall threaded hole, the position of the plate outer ring groove corresponds to the wall outer ring groove, the position of the plate inner ring groove corresponds to the wall inner ring groove, the outer sealing ring is positioned in the wall outer ring groove and the plate outer ring groove, the inner sealing ring is positioned in the wall inner ring groove and the plate inner ring groove, the inner sealing ring is fixedly bonded in the plate inner ring groove, and the outer sealing ring is fixedly bonded in the plate outer ring groove.

Preferably, a circular plate-shaped probe plate is arranged outside the temperature measuring probe, a block inner cavity is formed inside the rubber block, and the temperature measuring probe is located inside the block inner cavity in the rubber block.

Preferably, one end face of the rubber block is in contact with a shell plate in the bearing shell, the other end face of the rubber block is in contact with a pressing piece, the contour of the pressing piece is in a shape of a circular plate, and the pressing piece is provided with a tubular pressing barrel which is in an integrated structure with the pressing piece.

Preferably, the outward flange of epitheca is equipped with a top outer tube, the inner wall of top outer tube is equipped with the screw thread, the inward flange of epitheca is equipped with a top inner tube, top outer tube parcel is outside at the bearing shell, the screw thread of top outer tube inner wall and the shell external screw thread interlock of bearing shell excircle, be equipped with the spring between casting die and the top inner tube, a pot head of spring is established in the pressure section of thick bamboo outside, another pot head of spring is established in a top inner tube outside.

Preferably, the profile of the shock absorption ring is in a tire shape, the outer circle of the shock absorption ring is provided with an outer ring layer, the inner circle of the shock absorption ring is provided with an inner ring layer, the outer ring layer and the inner ring layer are made of Kevlar, a separating layer distributed in an annular array mode is arranged in the space inside the shock absorption ring, the separating layer divides the space inside the shock absorption ring into a plurality of compartments, elastic pieces are arranged inside the compartments, and air blocks are arranged inside the separating layer.

Preferably, lubricating grease is filled in the shock absorption ring, the inner layer of the ring is sleeved outside the temperature measuring probe, and the outer layer of the ring is propped against the inner wall of the top inner tube of the top shell.

Preferably, the edge of the pressing piece is rounded.

The invention has the technical effects and advantages that: according to the sensor connecting structure for the temperature transmitter, which can avoid the gap caused by vibration, the connection between the inner wall of the device and the bearing shell is completed in a mode of combining the inner sealing ring and the outer sealing ring, the double-layer sealing structure has a good sealing effect, the temperature measuring probe is connected with the bearing shell in a mode of connecting the temperature measuring probe with the rubber block, and compared with a conventional sealing ring, the structure has larger deformability, and the sealing is more difficult to lose efficacy when the temperature measuring probe is loosened;

the pressing piece is pressed to the rubber block in a spring jacking mode, the connection scheme can enable the temperature measuring probe to remove vibration in a deformation mode in the vibration process, and compared with rigid connection and buckle connection, the connection scheme has higher connection structure strength, is not easy to generate connection gaps due to vibration, and is suitable for being generally popularized and used;

the damping block is compressed in the movement process of the temperature measuring probe, and the deformation of the elastic sheet inside the damping block and the flow of the lubricating grease consume the force generated when the temperature measuring probe moves, so that the activity range of the temperature measuring probe is reduced, and the probability of damage to the temperature measuring probe is reduced.

Drawings

FIG. 1 is a sectional view of the shock absorbing ring of the present invention;

FIG. 2 is a schematic view of the structure of the shock absorbing ring in a separated state;

FIG. 3 is a schematic structural view of the inner wall of the apparatus of the present invention in a cutaway state;

FIG. 4 is a cross-sectional view of the support shell of the present invention;

FIG. 5 is a schematic structural diagram of a rubber block of the present invention in a cutaway state;

FIG. 6 is a sectional view of the pressing member according to the present invention;

FIG. 7 is a schematic structural view of the top case of the present invention in a cutaway state;

FIG. 8 is a schematic view of the internal structure of the shock absorbing ring of the present invention.

In the figure: 1. the inner wall of the device; 101. a wall-in-hole; 102. a wall taper hole; 103. an inner wall ring groove; 104. a wall outer ring groove; 105. wall threaded holes; 2. an inner seal ring; 3. an outer sealing ring; 4. a bearing shell; 401. a shell external thread; 402. a shell plate; 403. a plate center hole; 404. an inner plate ring groove; 405. a plate outer ring groove; 406. a plate edge hole; 5. a gasket; 6. a screw; 7. a temperature measuring probe; 701. a probe plate; 8. a rubber block; 801. a block cavity; 9. pressing parts; 901. pressing the cylinder; 10. a spring; 11. a top shell; 1101. jacking the inner pipe; 1102. ejecting the outer tube; 12. a shock absorbing ring; 1201. an outer ring layer; 1202. a ring inner layer; 1203. a separation layer; 1204. and (4) air block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-2, a sensor connection structure for a temperature transmitter capable of avoiding vibration to cause a gap, including an inner wall 1 of a device and a bearing shell 4 fixed to the inner wall 1 of the device, the inner wall 1 of the device and the bearing shell 4 are connected through a screw 6 penetrating through a gasket 5, an inner seal ring 2 and an outer seal ring 3 are arranged between the inner wall 1 of the device and the bearing shell 4, a temperature measuring probe 7 is arranged inside the bearing shell 4, a rubber block 8 is sleeved outside a probe plate 701 on the excircle of the temperature measuring probe 7, the rubber block 8 is tightly attached to a pressing part 9, a spring 10 is arranged on one side of the pressing part 9, which is opposite to the rubber block 8, one end of the spring 10, which is opposite to the pressing part 9, is in contact with a top shell 11, the top shell 11 is in threaded connection with the bearing shell 4, a shock absorbing ring 12 is sleeved on the temperature measuring probe 7 in the top shell 11, and the edge of the pressing part 9 is in a round angle processing mode.

Referring to fig. 3-4, a wall central hole 101 is formed in an inner wall 1 of the device, the wall central hole 101 is communicated with a tapered wall taper hole 102, concentric wall inner ring grooves 103 and wall outer ring grooves 104 are formed in the outer side of the wall central hole 101, wall threaded holes 105 distributed in an annular array are formed in the outer side of the wall outer ring grooves 104, a shell plate 402 is arranged at one end of the bearing shell 4, shell external threads 401 are formed in the outer circle of the other end of the bearing shell 4, a plate central hole 403 is formed in the center of the shell plate 402, concentric plate inner ring grooves 404 and plate outer ring grooves 405 are formed in the end face, facing away from the bearing shell 4, of the shell plate 402, plate edge holes 406 distributed in an annular array are formed in the outer edge of the shell plate 402, and the wall central hole 101 and the tapered wall taper hole 102 are used for accommodating the temperature measuring probe 7 and providing a larger movement space for the temperature measuring probe 7.

Referring to fig. 1-4, a screw 6 passes through a gasket 5 and a plate edge hole 406 to enter a wall threaded hole 105, a position of a plate outer ring groove 405 corresponds to a wall outer ring groove 104, a position of a plate inner ring groove 404 corresponds to a wall inner ring groove 103, an outer seal ring 3 is positioned inside the wall outer ring groove 104 and the plate outer ring groove 405, an inner seal ring 2 is positioned inside the wall inner ring groove 103 and the plate inner ring groove 404, the inner seal ring 2 is bonded and fixed inside the plate inner ring groove 404, the outer seal ring 3 is bonded and fixed inside the plate outer ring groove 405, and a good sealing effect can be obtained by using two layers of sealing of the inner seal ring 2 and the outer seal ring 3 between an inner wall 1 of the device and a bearing shell 4.

Referring to fig. 1-7, a circular plate-shaped probe plate 701 is arranged outside the temperature measuring probe 7, a block cavity 801 is formed inside the rubber block 8, the probe plate 701 is located inside the block cavity 801 in the rubber block 8, one end face of the rubber block 8 is in contact with a shell plate 402 in the bearing shell 4, the other end face of the rubber block 8 is in contact with a pressing piece 9, the pressing piece 9 is in a circular plate shape, the pressing piece 9 is provided with a tubular pressing cylinder 901 which is in an integrated structure with the pressing piece 9, the outer edge of the top shell 11 is provided with an outer top tube 1102, the inner wall of the outer top tube 1102 is provided with a screw thread, the inner edge of the top shell 11 is provided with an inner top tube 1101, the outer top tube 1102 is wrapped outside the bearing shell 4, the screw thread on the inner wall of the outer top tube 1102 is engaged with the shell external thread 401 on the excircle of the bearing shell 4, a spring 10 is arranged between the pressing piece 9 and the inner top tube 1101, one end of the spring 10 is sleeved outside the pressing cylinder 901, the other end of the spring 10 is sleeved outside the inner top tube 1101, the rubber block 8 can be continuously pressed in a pressing mode through the spring 10, and even if the rubber block 8 is worn, the rubber block can be pushed to deform to fill the wear in a rebounding mode through the spring 10.

Referring to fig. 8, the profile of the vibration damping ring 12 is tire-shaped, the main body of the vibration damping ring 12 is made of rubber, the outer ring of the vibration damping ring 12 is provided with an outer ring layer 1201, the inner ring of the vibration damping ring 12 is provided with an inner ring layer 1202, both the outer ring layer 1201 and the inner ring layer 1202 are made of kevlar cloth, the outer ring layer 1201 and the inner ring layer 1202 made of kevlar cloth have good wear resistance, the space inside the vibration damping ring 12 is provided with a separation layer 1203 distributed in an annular array, the separation layer 1203 divides the inner space of the vibration damping ring 12 into a plurality of compartments, the compartments are provided with spring plates, the separation layer 1203 is provided with a gas block 1204 inside, the vibration damping ring 12 is filled with grease, the inner ring layer 1202 is sleeved outside the temperature measuring probe 7, the outer ring layer 1201 is pressed against the inner wall of the top 1101 of the top shell 11, when being compressed, the grease inside the temperature probe will flow through the through hole inside the 1204 air block, thereby playing the effect of slowing down the activity amplitude of the temperature probe 7.

The working principle of the sensor connecting structure for the temperature transmitter capable of avoiding the gap caused by vibration is that the inner sealing ring 2 and the outer sealing ring 3 are arranged to prevent liquid in a tested device from seeping out from the connecting gap between the inner wall 1 of the device and the bearing shell 4, the top shell 11 is propped against one end of the spring 10, the spring 10 is propped against the pressing piece 9, the pressing piece 9 is propped against the rubber block 8, the compression degree of the spring 10 can be adjusted by rotating the top shell 11, the rubber block 8 is enabled to be tightly pressed against the probe plate 701 of the temperature measuring probe 7 inside the rubber block 8, the edge of the temperature measuring probe 7 is sealed at the moment, and as the rubber block 8 is made of rubber material, the temperature measuring probe 7 can shake relative to the inner wall 1 of the device, the vibration received by the temperature measuring probe can be removed in a shaking mode, the end part of the temperature measuring probe 7 can be compressed against the inner ring layer 1202 inside the shock absorbing ring 12 when shaking, and the structure is of a lever structure, the whole of the shock absorption ring 12 is made of deformable rubber, the separation layer 1203 in the shock absorption ring is compressed during deformation to separate the formed compartments, lubricating grease in the compressed compartments can be extruded to flow into the adjacent compartments through the channels in the 1204 air blocks due to the reduction of the space of the compartments, the temperature measuring probe 7 is restrained to shake in a mode of elastic sheet deformation and lubricating grease flowing, the moving amplitude of the temperature measuring probe is controlled, the phenomenon that the temperature measuring probe 7 is damaged due to too high-speed movement is avoided, gaps are prevented from being formed in the temperature measuring probe 7 due to vibration through the characteristics, and meanwhile, a good sealing effect is achieved.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the equivalent replacement or change according to the technical solution and the inventive concept of the present invention should be covered by the scope of the present invention.