Thermometer pickup device

Abstract

The application discloses a thermometer pickup device in the technical field of temperature measuring equipment, which comprises a shell, a mounting seat and a base are arranged in the shell, a pair of sliding holes are arranged on the ring side of the mounting seat, a push rod with a cylindrical pin is arranged in the mounting seat, the cylindrical pin passes through the pair of sliding holes and can slide in the corresponding sliding hole, the lower end of the push rod slides through the base and is provided with a placing groove, at least two clamping claws are hinged to the ring side of the push rod passing through the base and close to the lower end of the push rod, the clamping claw comprises a transverse part and a clamping part, a first connecting rod is hinged to the connecting position of the transverse part and the clamping part of a single clamping claw, the ends of the plurality of first connecting rods away from the corresponding clamping claws are hinged to the same longitudinal height of the ring side of the base, a plurality of barbs are arranged on a single clamping claw, and an elastic element is arranged between the mounting seat and the cylindrical pin. The device can reduce the holding force of the thermometer, reduce the pickup difficulty of the thermometer, and further reduce the damage probability of the thermometer when being pulled out from the curved block.

Description

Technical Field

[0001] This invention relates to the field of temperature measurement equipment for curved blocks, and more particularly to a thermometer pickup device. Background Technology

[0002] In the koji-making workshop, temperature monitoring during the koji fermentation process is a crucial step in ensuring the quality of the koji. Currently, this process commonly uses an alcohol thermometer inserted vertically into the koji block for temperature measurement. During operation, workers insert the thermometer into the koji block and remove it directly after measurement. Because the koji fermentation cycle is relatively long, the thermometer needs to remain inserted for an extended period until fermentation is complete. As fermentation progresses, the internal temperature of the koji block gradually rises, moisture evaporates, and the material gradually hardens and shrinks, creating a strong gripping force on the thermometer's glass rod, making it difficult to remove the thermometer.

[0003] Chinese patent application CN 209912799 U, entitled "An Easy-to-Pull-Out Insert-Type Temperature Controller," includes a housing with a scissor-type pull-out assembly. The assembly comprises a pin, a first connecting rod, and a second connecting rod. The pin is fixed to the housing, and the first and second connecting rods are hinged together to form a scissor structure. While this structure allows the insert-type temperature controller to be pulled out using the hinged first and second connecting rods, it relies on preventing the user's hand from contacting the thermometer. The force required to remove the thermometer is limited; a significant pulling force is still needed. Excessive force can easily cause the glass rod to break or shatter, resulting in either glass fragments mixing into the fermentation material or leakage of alcohol from the broken thermometer, contaminating the fermentation block and affecting its fermentation quality. Summary of the Invention

[0004] To overcome the above-mentioned shortcomings of the prior art, the technical problem to be solved by the present invention is: how to pick up the thermometer inside the curved block while reducing its probability of damage.

[0005] The technical solution adopted by this invention to solve its technical problem is: A thermometer pickup device includes a housing. A mounting base and a base are fixedly inserted into the housing near its upper and lower ends, respectively. The mounting base has a pair of opposing sliding holes on its annular side. A push rod with a cylindrical pin passes through the mounting base. Both ends of the cylindrical pin pass through the pair of sliding holes and can reciprocate within the corresponding sliding holes along the central axis of the push rod. The lower end of the push rod slides through the base and has a slot for mounting a thermometer. At least two mutually clamping jaws are hinged to the annular side of the push rod near its lower end, each jaw including a transverse portion hinged to the push rod and a portion whose central axis is aligned with the transverse portion. The clamping part has an obtuse angle at its central axis. A first connecting rod is hinged at the connection between the transverse part of a single claw and the clamping part. The ends of multiple first connecting rods away from their corresponding claws are all hinged at the same longitudinal height on the side of the base ring. Multiple barbs are fixedly provided on the outside of the clamping part of a single claw. The tips of the barbs are away from the outside of the corresponding claw. Multiple barbs are arranged sequentially along the central axis of the corresponding claw. An elastic element is provided between the mounting base and the cylindrical pin. In the initial state, the elastic element is in a compressed state, the cylindrical pin abuts against the upper end of the corresponding sliding hole, and the multiple claws are in a clamping state to clamp the thermometer.

[0006] Furthermore, the aforementioned mounting base includes a guide cylinder, with a connecting ring fixedly sleeved at one end of the guide cylinder near the aforementioned claw. The outer side of the connecting ring is fixedly connected to the inner side of the housing. A pair of aforementioned sliding holes are provided through the guide cylinder ring near its upper end. The elastic element is a spring, which is sleeved on the guide cylinder ring. One end of the spring abuts against the cylindrical pin, and the other end abuts against the upper side of the connecting ring.

[0007] Furthermore, the aforementioned push rod is provided with a first oblong hole, and a cylindrical pin passes through the first oblong hole. The center line of the long axis of the first oblong hole is perpendicular to the center line of the push rod. The guide cylinder ring side is provided with a pair of oppositely arranged second oblong holes opposite to the first oblong hole. The pair of second oblong holes are respectively connected to a pair of sliding holes to form T-shaped holes. The center line of the long axis of the second oblong hole is perpendicular to the center line of the long axis of the sliding hole. When the cylindrical pin is located in the second oblong hole, the multiple claws are in the initial clamping state.

[0008] Furthermore, a pressure cap is slidably fastened to the upper end of the aforementioned housing, the pressure cap is placed over the aforementioned push rod, and a pair of limiting holes are provided through the ring side of the pressure cap. The two ends of the cylindrical pin are respectively inserted into the limiting holes. A pair of assembly holes are provided through the aforementioned housing relative to the limiting holes. In the initial state, the central axis of the limiting holes is collinear with the central axis of any assembly hole.

[0009] Furthermore, the push rod ring side near its lower end has an equal number of hinge slots relative to the pawl, and a mounting plate is fixedly installed in the hinge slot. The pawl is connected to the corresponding mounting plate through the first hinge shaft. A silicone buffer sleeve is fixedly adhered to the inner side of the placement slot. The end face of the silicone buffer sleeve away from the mounting seat is flush with the lower end face of the push rod.

[0010] Furthermore, the aforementioned base includes a positioning cylinder, with a fixing ring fixedly sleeved on the outer ring side of the positioning cylinder away from the chuck. The outer side of the fixing ring is fixedly connected to the inner side of the housing. The aforementioned push rod passes through the aforementioned positioning cylinder. The positioning cylinder ring side is provided with mounting pieces corresponding to multiple first connecting rods. The end of the first connecting rod away from the chuck is hinged to the corresponding mounting piece through a second hinge shaft, and the end of the first connecting rod close to the chuck is hinged to the corresponding chuck through a third hinge shaft.

[0011] Furthermore, each of the aforementioned first links is provided with a corresponding second link. The end of the first link away from the pawl and the end of the second link away from the pawl are respectively located on both sides of the corresponding connecting piece, and are hinged to the corresponding mounting piece through the same second hinge axis. The end of the first link near the pawl and the end of the second link near the pawl are respectively located on both sides of the corresponding pawl, and are hinged to the corresponding pawl through the same third hinge axis.

[0012] Furthermore, a protective cover is provided at one end of the housing near the multiple claws, and an annular groove is provided on the outer side of the housing. At least two locking blocks are fixedly provided on the inner side of the protective cover along its circumference, and the multiple locking blocks are engaged with the annular groove.

[0013] Furthermore, a first suspension ring is provided at the end of the cap away from the housing, and a second suspension ring is provided on the protective cover. A suspension rope is threaded between the first suspension ring and the second suspension ring.

[0014] Furthermore, the aforementioned claw and its corresponding multiple barbs are integrally formed.

[0015] The beneficial effects of this invention are: The device contains a base, a push rod, multiple jaws, and a first connecting rod equal in number to the jaws within the housing. The jaws clamp and close by sliding the push rod up and down. Simultaneously, a mounting base, a cylindrical pin, and a spring are provided to limit the trajectory of the push rod, thus limiting the opening and closing degree of the multiple jaws. The spring can drive the push rod upward without strong external force to complete the clamping of the thermometer. In addition, multiple barbs are provided on the outer ring side of the jaws. By repeatedly pressing down on the jaws and opening and closing the jaws, the curved material around the thermometer is broken, thereby reducing the clamping force of the curved material on the curved block on the thermometer, reducing the difficulty of picking up the thermometer, and reducing the probability of the thermometer being damaged when pulled out of the curved block. Attached Figure Description

[0016] Figure 1 This is one of the structural schematic diagrams of the thermometer pickup device of the present invention; Figure 2 yes Figure 1 A magnified view of part A in the image; Figure 3 This is the second schematic diagram of the thermometer pickup device of the present invention; Figure 4 This is one of the partial structural schematic diagrams of the thermometer pickup device of the present invention; Figure 5 This is the third schematic diagram of the thermometer pickup device of the present invention; Figure 6 This is the second partial structural schematic diagram of the thermometer pickup device of the present invention; The components in the diagram are labeled as follows: 1-House, 2-Mounting base, 3-Base, 4-Push rod, 5-Placement groove, 6-Claw, 7-Horizontal part, 8-Clamping part, 9-Barb, 10-Spring, 11-Cylindrical pin, 12-Sliding hole, 13-Guide cylinder, 14-Connecting ring, 15-First waist-shaped hole, 16-Second waist-shaped hole, 17-Pressure cap, 18-Limiting hole, 19-Assembly hole, 20-Positioning cylinder, 21-Fixing ring, 22-Mounting piece, 23-Silicone buffer sleeve, 24-Connecting piece, 25-First connecting rod, 26-Second connecting rod, 27-Protective cover, 28-First hinge shaft, 29-Second hinge shaft, 30-Third hinge shaft, 31-Annular groove, 32-Clamping block, 33-Suspension rope, 34-First suspension ring, 35-Second suspension ring. Detailed Implementation

[0017] The invention will be further described below with reference to the accompanying drawings.

[0018] First, it should be stated that the terms "upper end" and "lower end" used in this application refer to... Figure 1 The directions shown are the reference points, with the top side being the upper end and the bottom side being the lower end.

[0019] like Figures 1-6As shown, the thermometer pickup device includes a housing 1. A mounting base 2 and a base 3 are fixedly installed near the upper and lower ends of the housing 1, respectively. The mounting base 2 has a pair of opposing sliding holes 12 on its circumferential side. A push rod 4 with a cylindrical pin 11 passes through the mounting base 2. Both ends of the cylindrical pin 11 pass through the pair of sliding holes 12 and can reciprocate within the corresponding sliding holes 12 along the central axis of the push rod 4. The lower end of the push rod 4 slides through the base 3 and has a placement groove 5 for mounting the thermometer. At least two clamping claws 6 are hinged to the lower end of the push rod 4 near the circumferential side of the base 3, engaging with each other. Each clamping claw 6 includes a transverse portion 7 hinged to the push rod 4 and a central axis. The clamping part 8 forms an obtuse angle with the central axis of the transverse part 7. A first connecting rod 25 is hinged at the connection between the transverse part 7 and the clamping part 8 for each individual claw 6. The ends of multiple first connecting rods 25, away from their corresponding claws 6, are all hinged to the same longitudinal height on the ring side of the base 3. Multiple barbs 9 are fixedly provided on the outside of the clamping part 8 for each individual claw 6, with the tips of the barbs 9 away from the outside of the corresponding claw 6. Multiple barbs 9 are arranged sequentially along the central axis of the corresponding claw 6. An elastic element is provided between the mounting base 2 and the cylindrical pin 11. In the initial state, the elastic element is compressed, the cylindrical pin 11 abuts against the upper end of the corresponding sliding hole 12, and the multiple claws 6 are in a clamping state, thus clamping the thermometer. The housing 1, push rod 4, multiple claws 6, multiple first connecting rods 25, and multiple barbs are all made of food-grade stainless steel, which to a certain extent avoids contamination and ensures safety and reliability. The central axis of the cylindrical pin 11 is perpendicular to the central axis of the push rod 4. The elastic component can be made of nickel-titanium based shape memory alloy, which has significant superelasticity.

[0020] In its initial state, the elastic element of the device is compressed, and the multiple jaws 6 can close to hold the thermometer. When the thermometer needs to be placed using this device, first hold the housing 1 and press the push rod 4 with your thumb (if you don't have enough strength, you can also operate with both hands). The push rod 4 moves downward, causing the cylindrical pin 11 passing through the push rod 4 to slide downward in the corresponding sliding hole 12. The elastic potential energy of the elastic element continues to increase. After continuous pressing, the push rod 4 moves downward, causing the lateral part 7 of the jaws 6 to move downward as well. Due to the setting of the first connecting rod 25, the clamping parts 8 of the multiple jaws 6 swing outward, that is, the multiple jaws 6 open. Insert the thermometer to be placed into the placement groove 5 of the push rod 4 through the open jaws 6 and adjust it to a suitable position. Then, slowly release the hand that pressed the push rod 4. Under the action of the elastic potential energy of the elastic element, the cylindrical pin 11 moves upward in the corresponding sliding hole 12 and finally abuts against the upper end of the corresponding sliding hole 12. The cylindrical pin 11 returns to its initial position. Simultaneously, the push rod 4 moves upward under the drive of the cylindrical pin 11, causing the hinged end of the transverse part 7 of the jaw 6 to move upward. The clamping part 8 of the jaw 6 swings back, and the clamping parts 8 of multiple jaws 6 gradually begin to close together and clamp the thermometer. Finally, the device holding the thermometer is inserted into the curved block whose temperature needs to be measured (at this time, the curved block is wet and relatively soft). After the thermometer is inserted, press the push rod 4 to open the jaws 6 and move the device upward. When the bottom of the jaws 6 is higher than the thermometer, release the pressed push rod 4. Alternatively, if the number of devices is limited, the thermometer can be inserted manually. Using this device to place the thermometer eliminates the need for bending over to insert the thermometer, making it more convenient and labor-saving.

[0021] Once the fermentation of the koji block is complete, the thermometer needs to be removed. First, press the push rod 4. The push rod 4 moves downward, causing the cylindrical pin 11 passing through the push rod 4 to slide downward in the corresponding sliding hole 12. The elastic potential energy of the elastic element continues to be released. After continuous pressing, the push rod 4 moves downward, causing the lateral part 7 of the claw 6 to move downward as well. Due to the setting of the first connecting rod 25, the clamping parts 8 of multiple claws 6 swing outward, that is, multiple claws 6 open, vertically aligning the housing 1 and placing it directly above the thermometer to be removed. Then, hold the housing 1 and move the entire removal and placement device downward, so that the thermometer to be removed passes through the open claws 6 and enters the placement groove 5 of the push rod 4. When the clamping end of the claw 6 touches the koji block, it pulls off part of the force acting on the push rod 4, causing the push rod 4 to move upward a certain distance (but not completely withdrawing the pushing force on the push rod 4), so that the claw 6 retracts, but does not fit with the thermometer. Then, continuing downwards, the gripping part 8 of the claw 6 inserts into the curved block a certain distance, and then stops the downward movement of the pick-and-place device, increasing the pushing force on the push rod 4. The push rod 4 drives the multiple claws 6 to open downwards. During the opening process, the barbs 9 on the outside of the claw 6 help the claw 6 expand inside and outside the curved block. After expanding to a certain extent, the hand pressing the push rod 4 is slowly released. Under the action of the elastic potential energy of the elastic element, the push rod 4 rebounds, and the multiple claws 6 clamp the thermometer wrapped by the curved material. In this pressing section, the curved material section wrapping the thermometer becomes a thinner wrapping wall, and the first pressing is completed. Then, the next downward pressure begins, pushing the housing 1 downwards, which in turn drives the pick-and-place device downwards. After reaching a certain position, the push rod 4 is pushed, causing the multiple jaws 6 to open and break the curved material covering the thermometer during this downward movement of the housing 1. After the jaws 6 open to a certain position, the pushing force of the push rod 4 is released. Under the action of the elastic potential energy of the elastic element, the push rod 4 rebounds, and the multiple jaws 6 clamp the thermometer covered by the curved material, completing the second downward pressure. The above steps are repeated multiple times until the jaws 6 penetrate deep into the head of the thermometer, ending the downward pressure. Then, the push rod 4 is pressed down, causing the multiple jaws 6 to open, driving the pick-and-place device upwards above the curved block. Then, the push rod 4 is released, and the multiple jaws 6 close to clamp the thermometer. The pick-and-place device is held and shaken left and right, then driven upwards to pull the thermometer out of the curved block.

[0022] This design utilizes barbs 9 on the outside of the jaws 6 to assist in opening and closing the jaws 6 by breaking through the curved blocks surrounding the thermometer. This thins the wall of the curved material surrounding the thermometer, reducing its grip and facilitating its removal. Compared to existing technologies, this design is gentler on the thermometer, reducing the risk of breakage and subsequent alcohol leakage and contamination. Simultaneously, the push rod 4 moves the lateral portion 7 of the jaws 6 up and down, working in conjunction with the first connecting rod 25 and the base 3 to clamp the jaws 6. A spring 10, cylindrical pin 11, and mounting base 2 ensure automatic return, making the device power-free, simple to operate, and more convenient.

[0023] The aforementioned mounting base 2 includes a guide cylinder 13. A connecting ring 14 is fixedly sleeved on one end of the guide cylinder 13 near the aforementioned claw 6. The outer side of the connecting ring 14 is fixedly connected to the inner side of the housing 1. A pair of aforementioned sliding holes 12 are provided through the guide cylinder 13 near its upper end on the ring side. The elastic element is a spring 10, which is sleeved on the ring side of the guide cylinder 13. One end of the spring 10 abuts against the cylindrical pin 11, and the other end abuts against the upper side of the connecting ring 14. The mounting base 2 and the housing 1 can be integrally formed or connected by welding. In this design, the spring 10 is used as the power for the push rod 4 to return to its initial state. The spring 10 is cost-effective, and its replacement and installation are relatively simple, facilitating subsequent maintenance and replacement.

[0024] The push rod 4 is provided with a first waist-shaped hole 15, and the cylindrical pin 11 passes through the first waist-shaped hole 15. The center line of the long axis of the first waist-shaped hole 15 is perpendicular to the center line of the push rod 4. The guide cylinder 13 is provided with a pair of second waist-shaped holes 16 on the circumferential side opposite to the first waist-shaped hole 15. The pair of second waist-shaped holes 16 are respectively connected to a pair of sliding holes 12 to form T-shaped holes. The center line of the long axis of the second waist-shaped hole 16 is perpendicular to the center line of the long axis of the sliding hole 12. When the cylindrical pin 11 is located in the second waist-shaped hole 16, the multiple claws 6 are in the initial clamping state. When the device is not in use, first ensure no force is applied to the push rod 4, allowing the cylindrical pin 11 to enter the second oblong hole 16 and abut against its upper inner surface. Then, rotate the cylindrical pin 11 counterclockwise or clockwise. The cylindrical pin 11 rotates within the first oblong hole 15 and the second oblong hole 16, with both the upper surfaces of the first oblong hole 15 and the second oblong hole 16 abutting against the cylindrical pin 11. Press down the push rod 4, causing the cylindrical pin 11 to move downwards. The lower surfaces of the first oblong hole 15 and the second oblong hole 16 abut against the cylindrical pin 11, preventing it from entering the sliding hole 12, thus completing the locking. When the device is needed, rotate the push rod 4 until the central axis of the cylindrical pin 11 is parallel to the central axis of the sliding hole 12. This design reduces the chance of accidentally pressing the push rod 4 when the device is not in use.

[0025] The upper end of the aforementioned housing 1 is slidably fastened with a pressure cap 17, which covers the aforementioned push rod 4. A pair of limiting holes 18 are provided through the circumferential side of the pressure cap 17. The two ends of the cylindrical pin 11 are respectively inserted into the limiting holes 18. A pair of assembly holes 19 are provided through the aforementioned housing 1 relative to the limiting holes 18. In the initial state, the central axis of the limiting hole 18 is collinear with the central axis of any assembly hole 19. During installation, a tool (such as a screwdriver or a rod-shaped object that can pass through the mounting hole) is used to press down the spring 10 through one assembly hole 19 and its corresponding limiting hole 18. A cylindrical pin 11 is inserted through another assembly hole 19, passes through the corresponding limiting hole 18, passes through the spring 10, and enters the sliding hole 12. Then, the assembly tool that limits the spring 10 is removed, and the lower end of the push rod 4 is pulled at the lower end of the housing 1 so that the push rod 4 reaches the position where the cylindrical pin 11 can pass through. Then, the cylindrical pin 11 is pushed in. After passing through the push rod 4, the cylindrical pin 11 passes through the corresponding sliding hole 12 in sequence and enters the other limiting hole 18. The installation is complete. At this time, the two ends of the cylindrical pin 11 are respectively located in a pair of limiting holes 18.

[0026] The push rod 4 has an equal number of hinge slots near its lower end on the ring side, opposite the claw 6. Mounting pieces 22 are fixedly installed within these hinge slots. The claw 6 is connected to the corresponding mounting piece 22 via a first hinge shaft 28. A silicone buffer sleeve 23 is fixedly adhered to the inner side of the placement groove 5. The end face of the silicone buffer sleeve 23 away from the mounting base 2 is flush with the lower end face of the push rod 4. The mounting piece 22 is positioned on the ring side of the push rod 4 to facilitate its installation. The silicone buffer sleeve 23 further increases the clamping force of the device on the thermometer and can also reduce the risk of damage caused by collision between the thermometer and the side wall of the placement groove 5 of the housing 1.

[0027] The base 3 includes a positioning cylinder 20. A fixing ring 21 is fixedly fitted onto the outer circumference of the positioning cylinder 20 away from the claw 6. The outer side of the fixing ring 21 is fixedly connected to the inner side of the housing 1. The push rod 4 passes through the positioning cylinder 20. Mounting pieces 22 are provided on the circumference of the positioning cylinder 20 corresponding to multiple first connecting rods 25. The end of the first connecting rod 25 away from the claw 6 is hinged to the corresponding mounting piece 22 via a second hinge shaft 29, and the end of the first connecting rod 25 near the claw 6 is hinged to the corresponding claw 6 via a third hinge shaft 30. The fixing ring 21 can be glued to the housing 1, or the base 3 and housing 1 can be integrally cast. The mounting pieces 22 facilitate the installation and removal of the claw 6. Both the second hinge shaft 29 and the third hinge shaft 30 are made of food-grade steel.

[0028] Each of the aforementioned first connecting rods 25 is correspondingly provided with a second connecting rod 26. The ends of the first connecting rod 25 and the second connecting rod 26 away from the pawl 6 are located on opposite sides of the corresponding connecting piece 24, and are hinged to the corresponding mounting piece 22 via the same second hinge shaft 29. The ends of the first connecting rod 25 and the second connecting rod 26 near the pawl 6 are located on opposite sides of the corresponding pawl 6, and are hinged to the corresponding pawl 6 via the same third hinge shaft 30. The provision of the second connecting rod 26 makes the device more stable during use; that is, if the first connecting rod 25 is damaged, the second connecting rod 26 can still ensure that the device continues to work.

[0029] The aforementioned housing 1 is covered with a protective cover 27 at one end near the multiple claws 6. An annular groove 31 is provided on the outer side of the housing 1. At least two locking blocks 32 are fixedly provided circumferentially on the inner side of the protective cover 27, and all locking blocks 32 engage with the annular groove 31. The protective cover 27 can prevent the claws 6 from scratching personnel or clothing when not in operation, thus providing protection. Preferably, there are two locking blocks 32, which are integrally formed with the protective cover 27. The arrangement of multiple locking blocks 32 and the annular groove 31 makes the installation of the protective cover 27 more stable.

[0030] The cap 17 is provided with a first suspension ring 34 at the end away from the housing 1, and the protective cover 27 is provided with a second suspension ring 35. A suspension rope 33 is threaded between the first suspension ring 34 and the second suspension ring 35. The suspension rope 33, together with the first suspension ring 34 and the second suspension ring 35, provides workers with a more convenient way to carry the retrieval device, making it easy for personnel to take and use it at any time.

[0031] The aforementioned claw 6 and its corresponding multiple barbs 9 are integrally formed. This integral forming avoids the weaknesses of welding, riveting, and other connection processes (such as weld seams and heat-affected zones). The overall structure of the parts is uniform, and the fatigue resistance and impact resistance are stronger, which is suitable for the claw 6's need to break up bent blocks and increases its service life to a certain extent.

[0032] In summary, this application proposes a thermometer pickup device. A push rod 4 is slidably inserted into the housing 1, and a placement groove 5 is provided on the push rod 4 so that the thermometer can be inserted therein. The vertical sliding position of the push rod 4 is limited by the cylindrical pin 11, the mounting base 2, and the connection between the two and the push rod 4. A spring 10 is added to make the push rod 4 spring back to the initial position without external force clamping. The thermometer is clamped by the base 3, multiple claws 6, and multiple first connecting rods 25. On this basis, multiple barbs 9 are provided on the outside of the claws 6 to cooperate with the opening and closing of the claws 6. By repeatedly pressing down on the jaws and then opening and closing them, the strong gripping force of the thermometer material on the ring side inserted into the koji block is gradually broken, leaving only a thin layer of the koji wall holding the thermometer. Combined with shaking the housing 1, the thermometer can be easily pulled out. This operation is convenient and reliable, and can reduce the damage to the thermometer to a certain extent, thereby reducing the probability of the koji block being contaminated. At the same time, the device has no complex electrical components, requires no power supply, is suitable for koji-making environments that are humid and dusty, and requires only cleaning and lubrication for daily maintenance. It also has a long service life.

Claims

1. A thermometer pickup device, comprising a housing (1), characterized in that: The housing (1) is fixedly fitted with a mounting base (2) and a base (3) near its upper and lower ends, respectively. The mounting base (2) has a pair of oppositely arranged sliding holes (12) on its circumferential side. A push rod (4) with a cylindrical pin (11) is fitted inside the mounting base (2). The two ends of the cylindrical pin (11) pass through the pair of sliding holes (12) and can slide back and forth in the corresponding sliding holes (12) along the central axis of the push rod (4). The lower end of the push rod (4) slides through the base (3) and is provided with a placement groove (5) for mounting a thermometer. At least two clamping claws (6) are hinged to the circumferential side of the push rod (4) near the lower end of the push rod (4) and engage with each other. The clamping claws (6) include a transverse part (7) hinged to the push rod (4) and the central axis and the transverse part (7). The clamping part (8) with an obtuse angle at the center axis has a first connecting rod (25) hinged at the connection between the transverse part (7) and the clamping part (8) of a single claw (6). The ends of multiple first connecting rods (25) away from their corresponding claws (6) are all hinged at the same longitudinal height on the ring side of the base (3). Multiple barbs (9) are fixedly provided on the outside of the clamping part (8) of a single claw (6). The tips of the barbs (9) are away from the outside of the corresponding claw (6). Multiple barbs (9) are arranged sequentially along the center axis of the corresponding claw (6). An elastic element is provided between the mounting base (2) and the cylindrical pin (11). In the initial state, the elastic element is in a compressed state, the cylindrical pin (11) abuts against the upper end of the corresponding sliding hole (12), and the multiple claws (6) are in a clamping state to clamp the thermometer.

2. The thermometer pickup device as described in claim 1, characterized in that: The mounting base (2) includes a guide cylinder (13). A connecting ring (14) is fixedly sleeved on one end of the guide cylinder (13) near the claw (6). The outer side of the connecting ring (14) is fixedly connected to the inner side of the housing (1). A pair of sliding holes (12) are provided through the guide cylinder (13) near its upper end. The elastic element is a spring (10). The spring (10) is sleeved on the guide cylinder (13). One end of the spring (10) abuts against the cylindrical pin (11), and the other end abuts against the upper side of the connecting ring (14).

3. The thermometer pickup device as described in claim 2, characterized in that: The push rod (4) is provided with a first waist-shaped hole (15), and a cylindrical pin (11) passes through the first waist-shaped hole (15). The center line of the long axis of the first waist-shaped hole (15) is perpendicular to the center line of the push rod (4). The guide cylinder (13) is provided with a pair of oppositely arranged second waist-shaped holes (16) on the ring side opposite to the first waist-shaped hole (15). The pair of second waist-shaped holes (16) are respectively connected to a pair of sliding holes (12) to form T-shaped holes. The center line of the long axis of the second waist-shaped hole (16) is perpendicular to the center line of the long axis of the sliding hole (12). When the cylindrical pin (11) is located in the second waist-shaped hole (16), the multiple claws are in the initial clamping state.

4. The thermometer pickup device as described in claim 2, characterized in that: The upper end of the housing (1) is slidably fastened with a pressure cap (17), which covers the push rod (4). A pair of limiting holes (18) are provided through the ring side of the pressure cap (17). The two ends of the cylindrical pin (11) are respectively inserted into the limiting holes (18). A pair of assembly holes (19) are provided through the housing (1) relative to the limiting holes (18). In the initial state, the central axis of the limiting hole (18) is collinear with the central axis of any assembly hole (19).

5. The thermometer pickup device as described in claim 2, characterized in that: The push rod (4) has an equal number of hinge slots on its ring side near its lower end relative to the claw (6). The mounting plate (22) is fixedly installed in the hinge slot. The claw (6) is connected to the corresponding mounting plate (22) through the first hinge shaft (28). A silicone buffer sleeve (23) is fixedly adhered to the inner side of the placement groove (5). The end face of the silicone buffer sleeve (23) away from the mounting base (2) is flush with the lower end face of the push rod (4).

6. The thermometer pickup device as described in claim 5, characterized in that: The base (3) includes a positioning cylinder (20). A fixing ring (21) is fixedly sleeved on the outer ring side of the positioning cylinder (20) away from the claw (6). The outer side of the fixing ring (21) is fixedly connected to the inner side of the housing (1). The push rod (4) passes through the positioning cylinder (20). The ring side of the positioning cylinder (20) is provided with mounting pieces (22) corresponding to multiple first connecting rods (25). The end of the first connecting rod (25) away from the claw (6) is hinged to the corresponding mounting piece (22) through the second hinge shaft (29). The end of the first connecting rod (25) close to the claw (6) is hinged to the corresponding claw (6) through the third hinge shaft (30).

7. The thermometer pickup device as claimed in claim 6, characterized in that: each Each of the first connecting rods (25) is provided with a corresponding second connecting rod (26). The end of the first connecting rod (25) away from the pawl (6) and the end of the second connecting rod (26) away from the pawl (6) are located on both sides of the corresponding connecting piece (24) and are hinged to the corresponding mounting piece (22) through the same second hinge shaft (29). The end of the first connecting rod (25) near the pawl (6) and the end of the second connecting rod (26) near the pawl (6) are located on both sides of the corresponding pawl (6) and are hinged to the corresponding pawl (6) through the same third hinge shaft (30).

8. The thermometer pickup device as described in claim 4, characterized in that: The housing (1) is covered with a protective cover (27) at one end near the multiple claws (6). The outer side of the housing (1) is provided with an annular groove (31). At least two locking blocks (32) are fixedly provided on the inner side of the protective cover (27) along its circumference. The multiple locking blocks (32) are engaged with the annular groove (31).

9. The thermometer pickup device as described in claim 8, characterized in that: The pressure cap (17) is provided with a first suspension ring (34) at one end away from the housing (1), and a second suspension ring (35) is provided on the protective cover (27). A suspension rope (33) is threaded between the first suspension ring (34) and the second suspension ring (35).

10. The thermometer pickup device as claimed in claim 1, characterized in that: The claw (6) and its corresponding multiple barbs (9) are integrally formed.

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