Thermal protection device of speed sensor

Abstract

The utility model relates to the technical field of sensor protection, and discloses a speed sensor thermal protection device which comprises a sensor body and a protection shell installed outside the sensor body, the protection shell comprises an upper shell and a lower shell, the upper shell is installed on the upper side of the lower shell, and movable grooves are formed in the two sides of the lower shell. The sensor body is movably installed in the lower shell through the movable groove, tight connection between the protective shells is ensured through the accurate design of the movable groove, the insertion block, the clamping block and other parts, so that the problems of shell expansion and connection looseness caused by heat are effectively prevented, maintenance operation becomes very simple through the arrangement of the control assembly, and the maintenance cost is reduced. According to the device, disassembly and maintenance can be completed only through operation of the control button, additional tools are not needed, it is ensured that a stable connection state can still be kept at different temperatures through arrangement of the spring and the limiting strip, and the reliability and stability of the device are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of sensor protection, in particular to a speed sensor thermal protection device. Background Art

[0002] A speed sensor is a device used to measure the speed of an object. It can be implemented through different principles, such as using light, sound waves, magnetic fields or mechanical contact. Speed ​​sensors are widely used in the industrial field to monitor and control the motion state of machines, equipment or vehicles. They can be used to measure the speed of rotating objects, the speed of linear moving objects, or the speed of liquids, gases, etc.

[0003] Speed ​​sensor thermal protection generally refers to measures to protect the speed sensor from damage or performance degradation in high temperature environments. In high temperature environments, the sensor may be affected by heat, causing its accuracy to decrease or fail. Therefore, it is crucial to take thermal protection measures.

[0004] A common thermal protection method is to use high temperature resistant materials to manufacture the sensor housing or external covering to protect the internal circuits and components from high temperatures. In addition, the temperature around the sensor can be controlled by providing a heat dissipation system or cooling system to ensure its normal operation in a high temperature environment.

[0005] The speed sensor is usually protected by a shell. However, the speed sensor generates a lot of heat when testing a high-speed belt, which may cause the shell to expand, resulting in loose connections or cracks on the surface of the shell. Therefore, it does not meet existing needs. We propose a speed sensor thermal protection device. Utility Model Content

[0006] The utility model provides a speed sensor thermal protection device, which has the beneficial effect of ensuring a tight connection between protective shells, and solves the problem mentioned in the above background technology that the speed sensor generates a large amount of heat when testing a high-speed belt, which may cause the shell to expand, thereby causing the connection of the shell to loosen, or cracks to appear on the surface of the shell.

[0007] The utility model provides the following technical solutions: a speed sensor thermal protection device, comprising a sensor body and a protective shell installed outside the sensor body, the protective shell comprising an upper shell and a lower shell, the upper shell being installed on the upper side of the lower shell, movable grooves being provided on both sides of the lower shell, the sensor body being movably installed in the lower shell through the movable grooves, an insert block being installed at the bottom of the upper shell, a slot corresponding to the insert block being provided in the lower shell, the slot being engaged with the insert block, a retraction slot being provided in the insert block, a card block being installed in the retraction slot, a card slot corresponding to the card block being provided in the slot, the card slot being connected with the slot, the card block being engaged with the card slot, a cavity being provided in the upper shell and the insert block, and a control component for controlling the card block being provided in the cavity.

[0008] As an optional solution of a thermal protection device for a speed sensor described in the utility model, a rotating rod is fixedly installed at the bottom of the block, a rotating groove corresponding to the rotating rod is opened in the retraction groove, and the rotating rod is movably inserted in the rotating groove.

[0009] As an optional solution for a thermal protection device for a speed sensor described in the utility model, the control component includes a limit rod fixedly installed in the cavity, a rotating wheel is arranged on the outer sleeve of the limit rod, a driving rope is wrapped around the outer sleeve of the rotating wheel, and an adjustment groove is provided in the upper shell and the plug block, an adjustment rod for controlling the block is movably inserted in the adjustment groove, and a control button for controlling the adjustment rod is installed on the top of the adjustment rod.

[0010] As an optional solution for a thermal protection device for a speed sensor described in the utility model, wherein: the block and the bottom of the adjusting rod are both fixedly installed with fixing rings, one end of the driving rope is fixedly connected to the fixing ring at the bottom of the block, and the other end of the driving rope is fixedly connected to the fixing ring at the bottom of the adjusting rod.

[0011] As an optional solution for a thermal protection device for a speed sensor described in the utility model, a limit plate is installed in the cavity, two limit plates are provided, both limit plates are installed at the bottom of the adjustment groove, and the two limit plates are located on both sides of the driving rope.

[0012] As an optional solution for a thermal protection device for a speed sensor described in the utility model, wherein: a groove is opened in the upper shell, the groove is connected to the adjustment groove, the adjustment rod is fixedly installed with a limit strip outside the groove, and the limit strip is movably arranged in the groove.

[0013] As an optional solution of a thermal protection device for a speed sensor described in the utility model, a telescopic rod is arranged in the groove, a spring is arranged on the outer sleeve of the telescopic rod, one end of the spring abuts against the inner wall of the groove, and the other end of the spring abuts against the upper end of the limit strip.

[0014] As an optional solution of a speed sensor thermal protection device described in the utility model, wherein: an inclined block is arranged in the slot, two of the inclined blocks are arranged, the two inclined blocks are symmetrically arranged on both sides of the plug block, and the inclined blocks are arranged as rubber blocks.

[0015] The utility model has the following beneficial effects:

[0016] 1. The speed sensor thermal protection device ensures a tight connection between the protective shells through the precise design of the movable slots, plugs, clamps and other components, thereby effectively preventing the expansion of the shell and loose connection caused by heat. The setting of the control components makes the maintenance operation very simple. Disassembly and maintenance can be completed by operating the control button without additional tools. The setting of springs and limit strips ensures that the connection can remain stable at different temperatures, ensuring the reliability and stability of the equipment.

[0017] 2. The speed sensor thermal protection device effectively enhances the stability and reliability of the connection by adding a limit plate in the cavity and setting a rubber bevel in the slot. The setting of the limit plate makes the driving rope more stable during movement, while the setting of the rubber bevel increases the friction between the plug and the slot to prevent the connection from loosening under high temperature conditions, so that the device can better cope with the working requirements in high temperature environment and ensure the normal operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main three-dimensional structure of the utility model.

[0019] Figure 2 It is a schematic diagram of the main body cutaway structure of the utility model.

[0020] Figure 3 It is a schematic diagram of the enlarged structure of point A of the utility model.

[0021] Figure 4 It is a schematic diagram of the enlarged structure of point B of the utility model.

[0022] In the figure: 100, sensor body; 200, protective shell; 300, upper shell; 310, movable slot; 320, plug block; 330, retracting slot; 331, rotating slot; 340, clamping block; 341, rotating rod; 400, lower shell; 410, slot; 420, clamping slot; 421, inclined block; 430, cavity; 500, control component; 510, limit rod; 520, rotating wheel; 530, driving rope; 540, adjusting slot; 550, adjusting rod; 551, control button; 552, fixing ring; 553, limit strip; 560, limit plate; 570, groove; 571, telescopic rod; 572, spring. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Embodiment 1: This embodiment is intended to help solve the problem that a speed sensor generates a lot of heat when testing a high-speed belt, which may cause the housing to expand, thereby causing the connection of the housing to loosen or cracks to appear on the surface of the housing. Please refer to Figure 1 - Figure 4 A speed sensor thermal protection device includes a sensor body 100 and a protective shell 200 installed outside the sensor body 100, the protective shell 200 includes an upper shell 300 and a lower shell 400, the upper shell 300 is installed on the upper side of the lower shell 400, and movable grooves 310 are opened on both sides of the lower shell 400. The sensor body 100 is movably installed in the lower shell 400 through the movable grooves 310, an insert block 320 is installed at the bottom of the upper shell 300, and a lower shell 400 is opened in the insert block 320. A corresponding slot 410 is provided, the slot 410 is engaged with the plug block 320, a retraction slot 330 is provided in the plug block 320, a card block 340 is installed in the retraction slot 330, a card slot 420 corresponding to the card block 340 is provided in the slot 410, the card slot 420 is communicated with the slot 410, the card block 340 is engaged with the card slot 420, a cavity 430 is provided in the upper shell 300 and the plug block 320, and a control component 500 for controlling the card block 340 is arranged in the cavity 430.

[0025] A rotating rod 341 is fixedly installed at the bottom of the block 340, a rotating groove 331 corresponding to the rotating rod 341 is provided in the retracting groove 330, and the rotating rod 341 is movably inserted in the rotating groove 331. The control component 500 includes a limit rod 510 fixedly installed in the cavity 430, a rotating wheel 520 is provided on the outer cover of the limit rod 510, a driving rope 530 is wound around the rotating wheel 520, and an adjustment groove 540 is provided in the upper shell 300 and the inserting block 320, an adjustment rod 550 for controlling the block 340 is movably inserted in the adjustment groove 540, and a control button 551 for controlling the adjustment rod 550 is installed on the top of the adjustment rod 550.

[0026] The bottom of the block 340 and the adjusting rod 550 are both fixedly installed with a fixing ring 552, one end of the driving rope 530 is fixedly connected to the fixing ring 552 at the bottom of the block 340, and the other end of the driving rope 530 is fixedly connected to the fixing ring 552 at the bottom of the adjusting rod 550. A limit plate 560 is installed in the cavity 430, and two limit plates 560 are provided. Both limit plates 560 are installed at the bottom of the adjusting slot 540, and the two limit plates 560 are located on both sides of the driving rope 530.

[0027] A groove 570 is provided in the upper shell 300, and the groove 570 is connected with the adjustment groove 540. The adjustment rod 550 is fixedly installed with a limit strip 553 near the outside of the groove 570, and the limit strip 553 is movably arranged in the groove 570. A telescopic rod 571 is arranged in the groove 570, and a spring 572 is arranged on the outer sleeve of the telescopic rod 571. One end of the spring 572 abuts against the inner wall of the groove 570, and the other end of the spring 572 abuts against the upper end of the limit strip 553, so that the adjustment rod 550 can be better controlled. Due to the arrangement of the spring 572, after the control of the adjustment rod 550 is ended, the telescopic rod 571 and the spring 572 can control the limit strip 553 to drive the adjustment rod 550 to return to its original state.

[0028] When installing, directly plug the upper shell 300 and the lower shell 400 into each other. When the plug block 320 is plugged into the slot 410, the inertia block 340 will be released from the retracting slot 330, so that it can be plugged into the slot 420. When the temperature is too high, the connection of the protective shell 200 can also be tightly connected. When disassembly and maintenance are required, just pull the control button 551 upward to drive the driving rope 530 at the bottom of the adjustment rod 550 to move upward. Due to the setting of the rotating wheel 520, the driving rope 530 at the bottom of the adjustment rod 550 will drive the driving rope 530 at the bottom of the block 340 to move downward when the driving rope 530 at the bottom of the adjustment rod 550 moves upward, thereby driving the block 340 to disengage from the slot 420 and retract into the retracting slot 330. At this time, continue to pull the control button 551 to separate the upper shell 300 from the lower shell 400, and maintain the sensor body 100.

[0029] In this embodiment: through the precise design of the movable groove 310, the plug block 320, the clamping block 340 and other components, a tight connection between the protective shell 200 is ensured, thereby effectively preventing the expansion of the shell and loose connection caused by heat. Through the setting of the control component 500, the maintenance operation becomes very simple, and the disassembly and maintenance can be completed by operating the control button 551 without additional tools. Through the setting of the spring 572 and the limit bar 553, a stable connection state can be maintained at different temperatures, thereby ensuring the reliability and stability of the equipment.

[0030] Embodiment 2: This embodiment is intended to promote the solution of the problem of loose connection caused by thermal expansion and contraction in a high temperature environment. This embodiment is an improvement made on the basis of embodiment 1. For details, please refer to Figure 1 - Figure 4 .

[0031] A limit plate 560 is installed in the cavity 430. Two limit plates 560 are provided. Both limit plates 560 are installed at the bottom of the adjustment slot 540 and are located on both sides of the driving rope 530. An inclined block 421 is provided in the slot 420. Two inclined blocks 421 are provided. The two inclined blocks 421 are symmetrically arranged on both sides of the insert block 320. The inclined blocks 421 are set as rubber blocks.

[0032] In this embodiment: by adding a limiting plate 560 in the cavity 430 and setting a rubber bevel block 421 in the slot 420, the stability and reliability of the connection are effectively enhanced. The setting of the limiting plate 560 makes the driving rope 530 more stable during the movement, and the setting of the rubber bevel block 421 increases the friction between the plug block 320 and the slot 420 to prevent the connection from loosening under high temperature conditions, so that the device can better cope with the working requirements in a high temperature environment and ensure the normal operation of the equipment.

[0033] 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.

[0034] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A speed sensor thermal protection device, comprising a sensor body (100) and a protection shell (200) installed outside the sensor body (100), characterized in that: The protective shell (200) comprises an upper shell (300) and a lower shell (400), wherein the upper shell (300) is mounted on the upper side of the lower shell (400), movable grooves (310) are provided on both sides of the lower shell (400), and the sensor body (100) is movably mounted in the lower shell (400) through the movable grooves (310), and an insert block (320) is installed at the bottom of the upper shell (300), and a slot (410) corresponding to the insert block (320) is provided in the lower shell (400), and the slot (410) is card-engaged with the insert block (320). The insert block (320) is provided with a retraction groove (330), a card block (340) is installed in the retraction groove (330), a card slot (420) corresponding to the card block (340) is provided in the slot (410), the card slot (420) is communicated with the slot (410), the card block (340) is engaged with the card slot (420), a cavity (430) is provided in the upper shell (300) and the insert block (320), and a control component (500) for controlling the card block (340) is arranged in the cavity (430).

2. A speed sensor thermal protection device according to claim 1, characterized in that: A rotating rod (341) is fixedly mounted on the bottom of the clamping block (340), a rotating groove (331) corresponding to the rotating rod (341) is provided in the retracting groove (330), and the rotating rod (341) is movably inserted in the rotating groove (331).

3. A speed sensor thermal protection device according to claim 1, characterized in that: The control assembly (500) comprises a limit rod (510) fixedly installed in the cavity (430), the limit rod (510) being provided with a rotating wheel (520) on its outer shell, a driving rope (530) being wound around the rotating wheel (520), and an adjustment slot (540) provided in the upper shell (300) and the plug block (320), an adjustment rod (550) for controlling the block (340) being movably inserted in the adjustment slot (540), and a control button (551) for controlling the adjustment rod (550) being installed on the top of the adjustment rod (550).

4. A speed sensor thermal protection device according to claim 3, characterized in that: A fixing ring (552) is fixedly installed at the bottom of the clamping block (340) and the adjusting rod (550); one end of the driving rope (530) is fixedly connected to the fixing ring (552) at the bottom of the clamping block (340); and the other end of the driving rope (530) is fixedly connected to the fixing ring (552) at the bottom of the adjusting rod (550).

5. A speed sensor thermal protection device according to claim 3, characterized in that: A limit plate (560) is installed in the cavity (430), and two limit plates (560) are provided. Both limit plates (560) are installed at the bottom of the adjustment groove (540), and the two limit plates (560) are located on both sides of the driving rope (530).

6. A speed sensor thermal protection device according to claim 3, characterized in that: A groove (570) is provided in the upper shell (300), the groove (570) is communicated with the adjustment slot (540), a limit strip (553) is fixedly installed outside the adjustment rod (550) close to the groove (570), and the limit strip (553) is movably arranged in the groove (570).

7. A speed sensor thermal protection device according to claim 6, characterized in that: A telescopic rod (571) is arranged in the groove (570), and a spring (572) is arranged on the outer sleeve of the telescopic rod (571). One end of the spring (572) abuts against the inner wall of the groove (570), and the other end of the spring (572) abuts against the upper end of the limit strip (553).

8. A speed sensor thermal protection device according to claim 1, characterized in that: An inclined block (421) is arranged in the slot (420), two inclined blocks (421) are arranged, and the two inclined blocks (421) are symmetrically arranged on both sides of the insert block (320), and the inclined blocks (421) are arranged as rubber blocks.

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