Temperature detection device for chemical safety

Abstract

The invention relates to a temperature detection device for chemical safety, and belongs to the technical field of temperature detection equipment, a temperature measurement element is fixed at the bottom end of a main body of the temperature detection device, a threaded block is coaxially matched in the main body in a threaded mode, and a first driving piece, a second driving piece and a third driving piece are arranged on the main body from top to bottom; the first driving piece is sleeved on the main body in a threaded fit manner, and a sealing gasket is embedded in the bottom end of the first driving piece; the second driving part comprises moving columns arranged around the main body in an annular array mode, the third driving part comprises a plurality of sliding rods arranged around the main body in an annular array mode, when the threaded block moves downwards in the main body, all the sliding rods are pushed to move towards the outer side of the main body, and when the first driving part rotates till the first driving part cannot rotate downwards any more, all the sliding rods are pushed to move towards the outer side of the main body. The upper surfaces of the end portions of all the sliding rods are tightly attached to the bottom end face of the temperature measuring hole, and the sealing washer is pressed on the top end face of the temperature measuring hole. The device can be quickly and reliably mounted on the chemical container and is easy to disassemble and maintain in the later period.

Description

Technical Field

[0001] The invention relates to the technical field of temperature detection equipment, and in particular to a temperature detection device for chemical safety. Background Art

[0002] Temperature detection devices are widely used in various industries, but in the chemical industry, due to its special production environment and strict safety requirements, chemical temperature detection devices have their own unique features compared to general temperature detection devices. One of them is that they need to be frequently inspected and maintained. Because safety is no small matter, during daily inspections, the temperature detection device must be comprehensively inspected and maintained. This requires the temperature detection device to be disassembled when necessary so that it can be replaced in time when the temperature measuring element is found to be failed.

[0003] When the commonly used temperature detection devices are installed on chemical containers, according to the installation requirements of the specific temperature detection devices, special threaded blind holes must be processed around the temperature measuring holes of the container for installation and fixation, or a special mounting seat corresponding to the corresponding temperature detection device must be added, and the mounting seat must be welded and fixed on the surface of the container, and then the temperature detection equipment that adapts to the interface must be installed. This is very troublesome, and in order to avoid such subsequent production problems, it is necessary to equip and install these structures when designing the container. As for adding or changing the position later, it is very difficult. It can be seen that these existing temperature detection devices are not only inconvenient to assemble and disassemble during routine maintenance, but also may fail due to multiple disassembly. The most critical thing is that they may not be removed, and can only be disassembled as a whole and replaced with a special mounting seat. Summary of the invention

[0004] In view of this, an object of the present invention is to provide a temperature detection device for chemical safety, so as to solve the problem in the prior art that the temperature detection device used on the chemical container is difficult to be assembled and disassembled quickly and reliably.

[0005] The present invention is achieved through the following technical solutions:

[0006] A temperature detection device for chemical safety, comprising a main body passing through a temperature measuring hole of a chemical container and a temperature measuring element mounted on the main body, wherein the temperature measuring element is fixed to the bottom end of the main body, a threaded block is coaxially threadedly engaged in the main body, and a first driving member, a second driving member and a third driving member are arranged on the main body from top to bottom, wherein:

[0007] The first driving member is sleeved on the main body in a threaded manner, and a sealing gasket is embedded in the bottom end of the first driving member; the second driving member includes moving columns arranged in a circular array around the main body, and the moving columns are arranged along the radial direction of the main body, and when the first driving member rotates, all the moving columns of the second driving member move synchronously toward the outside of the main body;

[0008] The third driving member includes a plurality of sliding rods arranged in a circular array around the main body. When the threaded block moves downward in the main body, it pushes all the sliding rods to move toward the outside of the main body. When the first driving member rotates until it can no longer rotate downward, the upper surfaces of the ends of all the sliding rods are tightly against the bottom end surface of the temperature measuring hole, and the sealing gasket is pressed against the top end surface of the temperature measuring hole.

[0009] Furthermore, a pipe thread for threaded sleeve engagement of the first driving member is provided on the outer side of the upper section of the main body, and the sliding rod is radially slidably provided inside the side wall of the main body near the bottom end.

[0010] Furthermore, the bottom end of the threaded block is conical with the cone tip facing downwards, a rotating shaft is coaxially fixed to the top end of the threaded block, and an operating handle is fixed to one end of the rotating shaft that extends out of the top end of the main body in a rotatable manner.

[0011] Furthermore, the first driving member also includes a threaded cover and a pressure plate. The threaded cover is coaxially threadedly sleeved on the main body. The top end surface of the pressure plate near the edge is coaxially provided with a sliding sleeve. The sliding sleeve is axially slidably installed inside the bottom end of the threaded cover and contacts with the bottom end of the pressure spring coaxially installed inside the threaded cover. A positioning cylinder protruding downward at the center of the pressure plate and the center of the threaded cover are axially slidably and sealingly sleeved together, so that when the threaded cover rotates around the main body thread, the pressure spring is gradually compressed, and the bottom end of the positioning cylinder is used to be connected to the second driving member for synchronous rotation.

[0012] Furthermore, a sealing gasket is coaxially embedded in the bottom end surface of the pressing plate near its edge.

[0013] Furthermore, the second driving member also includes a rotating body installed on the main body for self-rotation in situ, the top of the rotating body is synchronously connected to the bottom end of the positioning cylinder, and the end face of its bottom end is a plane gear; a circle of the moving column is provided below the plane gear, one end of the moving column is plug-in-matched with the threaded plug of the main body, and the other end is used to contact the inner wall of the temperature measuring hole, and a cylindrical gear is also coaxially fixed on the moving column, and all cylindrical gears are synchronously meshed with the plane gear.

[0014] Furthermore, the end surface of the other end of the moving column is hemispherical and has a smooth surface.

[0015] Furthermore, a plurality of transmission rods are provided on the top surface of the rotating body, and the transmission rods are axially slidably mounted in the positioning cylinder, so that when the positioning cylinder rotates and moves downward, the rotating body can be driven to rotate.

[0016] Furthermore, the third driving member also includes an outer rubber ring and an inner rubber ring. The inner rubber ring connects the ends of all the sliding rods that are close to each other in series on a circle, and the outer rubber ring connects the other ends of all the sliding rods in series on a circle, so that under the action of the two concentric rubber rings, all the sliding rods maintain a relatively regular circular array arrangement, and the ends of all the sliding rods that are close to each other can maintain effective contact with the side wall of the threaded block.

[0017] Furthermore, the rubber ring passes through the end of the sliding rod or is embedded in the surface of the sliding rod near the end; wherein a plurality of sliding rods have a shaft ring at one end close to each other, and the shaft ring is connected to the inner wall of the main body through a supporting spring.

[0018] The beneficial effects of the present invention are:

[0019] The temperature detection device for chemical safety realizes self-centering installation of the temperature detection device in the temperature measuring hole through synchronous axial movement of the mobile column of the annular array, and realizes final fixation after centering by clamping in two directions of up and down through the cooperation of the first driving member and the third driving member. It is very convenient to install and disassemble. It is very practical for temperature detection equipment for chemical containers that need to be replaced and repaired, especially for the transformation of new temperature sampling points for existing chemical equipment, it is the simplest and most universal.

[0020] In addition, since the temperature detection device for chemical safety in the present invention can be directly inserted into the existing temperature measuring hole for quick installation, there is no need to perform additional processing on the container's accessory components or accessory structures. Because the present invention is directly inserted into the original temperature measuring hole and is quickly installed by axial clamping, it is safe and reliable to use. During installation, the chemical container structure will not be changed, and no special installation components for the temperature detection device will be added. It has strong adaptability.

[0021] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A structural cross-sectional view of the present invention after installation and fixation is completed;

[0023] Figure 2 A cross-sectional view of the structure of the present invention when it is ready to be installed and fixed;

[0024] Figure 3 A bottom view of a pressing plate of the present invention;

[0025] Figure 4 for Figure 1 A top view of the sliding rods in the circular array.

[0026] In the figure: chemical container 1, temperature measuring hole 101, temperature measuring element 2, main body 3, first driving member 4, threaded cover 401, positioning cylinder 402, pressure plate 403, pressure spring 404, sliding sleeve 405, second driving member 5, transmission rod 501, rotating body 502, plane gear 503, cylindrical gear 504, moving column 505, sealing gasket 6, threaded block 7, third driving member 8, sliding rod 801, outer rubber ring 802, inner rubber ring 803, supporting spring 804, shaft ring 805, rotating shaft 9, operating handle 10. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0030] See also Figure 1-2The present invention provides a technical solution: a temperature detection device for chemical safety, which mainly includes a main body 3 passing through the temperature measuring hole 101 of the chemical container 1. The main body 3 can be some existing columnar temperature sensor devices. The main body 3 extends into the temperature measuring hole 101. At the same time, a temperature measuring element 2 installed on the main body 3 is used to contact the internal space of the chemical container 1 to detect the temperature. When making, the bottom end of the main body 3 is fixed with a temperature measuring element 2 to detect the temperature. At the same time, it is also necessary to coaxially thread a thread block 7 in the main body 3. The thread block 7 can be cylindrical, and the main body 3 has a corresponding cylindrical threaded hole to achieve a threaded connection between the two. In addition, the main body 3 is provided with a first driving member 4, a second driving member 5 and a third driving member 8 from top to bottom. Specifically, the first driving member 4 is sleeved on the main body 3 in a threaded manner, similar to a bottle cap that can be rotated and tightened. A sealing gasket 6 is embedded in the bottom end of the first driving member 4, so that when the first driving member 4 is rotated down to the limit, the sealing gasket 6 is well pressed and contacted with the top surface of the temperature measuring hole 101 to achieve sealing. The second driving member 5 includes moving columns 505 arranged in an annular array around the main body 3. These moving columns 505 are arranged along the radial direction of the main body 3 and can move along the radial direction. Moreover, when the first driving member 4 rotates, all the moving columns 505 of the second driving member 5 will move synchronously toward the outside of the main body 3, and then contact the inner wall of the temperature measuring hole 101, and finally realize the automatic centering of the temperature detection device, that is, it is coaxially installed in the temperature measuring hole 101. As for the third driving member 8, it mainly includes a plurality of sliding rods 801 arranged in a circular array around the main body 3. The sliding rods 801 can be rectangular strip structures. When the threaded block 7 rotates in the main body 3 in the form of threaded fit and then moves downward, the threaded block 7 contacts the ends of the sliding rods 801, which will push all the sliding rods 801 to move toward the outside of the main body 3, and preferably move synchronously. When the first driving member 4 rotates to the point where it can no longer rotate downward, the upper surfaces of the ends of all the sliding rods 801 are tightly attached to the bottom end surface of the temperature measuring hole 101, and the sealing gasket 6 is pressed against the top end surface of the temperature measuring hole 101, and then the temperature detection device is fixedly installed in the form of clamping the wall of the chemical container 1 in both the upper and lower directions.

[0031] In this embodiment: Specifically, the outer side of the upper section of the main body 3 is provided with a pipe thread for the first driving member 4 to be threadedly sleeved, and the main body 3 is provided with a sliding rod 801 radially slidingly inside the side wall of the bottom end thereof. The bottom end of the threaded block 7 mentioned above is conical, and the cone tip faces downward, and the conical surface contacts the end of the sliding rod 801 to drive it to move. A rotating shaft 9 is coaxially fixed to the top surface of the threaded block 7, and an operating handle 10 is fixed to one end of the rotating shaft 9 that extends out of the top of the main body 3 in a rotationally coordinated manner. Holding the operating handle 10, the threaded block 7 can be turned to adjust the extension amount of the sliding rod 801.

[0032] In this embodiment: the first driving member 4 also includes a threaded cover 401 and a pressure plate 403. In this embodiment, the threaded cover 401 is coaxially threadedly sleeved on the main body 3, and the pressure plate 403 has a sliding sleeve 405 coaxially on the top surface near the edge. The two are preferably formed in one piece. The sliding sleeve 405 is axially slidably installed in the bottom end of the threaded cover 401 and contacts with the bottom end of the pressure spring 404 coaxially installed in the threaded cover 401, so as to Figure 2 When the threaded cover 401 is rotated at the position shown, it moves downward along the sliding sleeve 405. A positioning cylinder 402 protrudes downward in the center of the pressing plate 403 and the center of the threaded cover 401. This positioning cylinder 402 is axially slidably and sealedly sleeved with a smooth cylindrical surface on the main body 3, and as shown in FIG. Figure 2 At the beginning of installation, when the threaded cover 401 rotates around the main body 3, the pressure spring 404 is gradually compressed, the elastic force increases, and then the sealing gasket 6 is squeezed more and more. In this embodiment, the bottom end of the positioning cylinder 402 can be used to be connected with the second driving member 5 for synchronous rotation, so that when the threaded cover 401 rotates, it can drive the second driving member 5 to rotate together. In practice, if Figure 3 The sealing gasket 6 is preferably coaxially embedded in the bottom end surface of the pressure plate 403 near its edge.

[0033] In this embodiment: the specific structure of the second driving member 5 is as follows: Figure 1 , and also includes a rotating body 502 installed on the main body 3 in a self-rotating manner in situ, the top of the rotating body 502 is connected to the bottom of the positioning cylinder 402 in a synchronously rotating manner, and the end face of the bottom end is a plane gear 503. A circle of moving columns 505 is provided below the plane gear 503, one end of the moving column 505 is threadedly plugged into the main body 3, and the other end is used to contact the inner wall of the temperature measuring hole 101, and a cylindrical gear 504 is coaxially fixed on the moving column 505, and all cylindrical gears 504 are synchronously meshed with the plane gear 503, that is, when the disc-shaped plane gear 503 rotates, it will drive all the cylindrical gears 504 meshed with it to rotate, and then drive all the moving columns 505 to extend synchronously in the form of threaded matching, and then realize the centering installation of the main body 3. In order to facilitate the axial sliding of the main body 3 and its auxiliary components after the centering is completed, the end surface of the other end of the mobile column 505 is preferably fixed with a positioning block of a tile-like structure, the inner arc surface of the positioning block is fixedly connected to the end of the mobile column 505, and the outer arc surface is preferably smooth. Of course, it can also be used Figure 1 The hemispherical structure has the best centering effect, but the main body 3 may deflect during axial movement and needs to be straightened during installation, and finally the coaxiality is adjusted through the pressure plate 403.

[0034] In order to achieve the synchronous rotation connection between the rotating member and the positioning cylinder 402, as shown in FIG. Figure 1As shown, there may be a plurality of transmission rods 501 on the top surface of the rotating body 502. These transmission rods 501 are installed in the positioning cylinder 402 similar to sliding keys, that is, the transmission rods 501 are installed in the positioning cylinder 402 in an axially sliding manner, so that when the positioning cylinder 402 rotates and moves downward, it can drive the rotating body 502 to rotate together.

[0035] In this embodiment: As a particularly ingenious design, Figure 1 and Figure 4 As shown, in order to make all the sliding rods 801 in a relatively stable annular array state, the third driving member 8 also includes an outer rubber ring 802 and an inner rubber ring 803, both of which have good elasticity. When installed, the inner rubber ring 803 connects all the sliding rods 801 close to each other in series on a circle, and the outer rubber ring 802 connects all the other ends of the sliding rods 801 in series on a circle, so that under the action of the two concentric rubber rings, all the sliding rods 801 maintain a relatively regular circular array arrangement, and can be better extended when the conical surface of the threaded block 7 moves downward, especially when the threaded hole moves upward, it can be quickly reset. As for the sliding out of the sliding rods 801, when the ends of all the sliding rods 801 close to each other maintain effective contact with the side wall of the threaded block 7, they slide due to extrusion contact.

[0036] In the above implementation structure, there are two installation structures of the two rubber rings, namely Figure 4 As shown, the rubber ring penetrates the end of the sliding rod 801, or is embedded in the surface of the sliding rod 801 near the end, wherein a plurality of sliding rods 801 are provided with a collar 805 at one end close to each other, and the collar 805 is connected to the inner wall of the main body 3 through a supporting spring 804, and then can assist the rubber ring to retract and reset all the sliding rods 801 when the threaded block 7 is withdrawn. It should be noted that the reason why all the supporting springs 804 are not used in this design is mainly because too many springs are difficult to install, and it is difficult for each spring to have the same elasticity, so a simpler rubber ring is used, and 1-3 supporting springs 804 are used. When there are very few sliding rods 801, for example, only three, three supporting springs 804 can be provided. If there are slightly more, only one of the sliding rods 801 can be selected to be sleeved with a supporting spring 804 to assist in resetting.

[0037] In the above description of the present invention, it should be noted that the terms "one side", "the other side", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0038] In addition, the term "same" does not mean that the parts must be absolutely the same, but slight differences are allowed. The term "vertical" only means that the positional relationship between the parts is more vertical than "parallel", and does not mean that the structure must be completely vertical, but can be slightly tilted.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A temperature detection device for chemical safety, comprising a main body (3) passing through a temperature measuring hole (101) of a chemical container (1) and a temperature measuring element (2) mounted on the main body (3), characterized in that: The temperature measuring element (2) is fixed to the bottom end of the main body (3), a threaded block (7) is coaxially threadedly engaged in the main body (3), and a first driving member (4), a second driving member (5) and a third driving member (8) are arranged on the main body (3) from top to bottom, wherein: The first driving member (4) is sleeved on the main body (3) in a threaded manner, and a sealing gasket (6) is embedded in the bottom end of the first driving member (4); the second driving member (5) includes moving columns (505) arranged in a circular array around the main body (3), and the moving columns (505) are arranged along the radial direction of the main body (3), and when the first driving member (4) rotates, all the moving columns (505) of the second driving member (5) move synchronously toward the outside of the main body (3); The third driving member (8) includes a plurality of sliding rods (801) arranged in a circular array around the main body (3); when the threaded block (7) moves downward in the main body (3), it pushes all the sliding rods (801) to move toward the outside of the main body (3); and when the first driving member (4) rotates until it can no longer rotate downward, the upper surfaces of the ends of all the sliding rods (801) are tightly attached to the bottom end surface of the temperature measuring hole (101), and the sealing gasket (6) is pressed against the top end surface of the temperature measuring hole (101).

2. The temperature detection device for chemical safety according to claim 1, characterized in that: The outer side of the upper section of the main body (3) is provided with a pipe thread for the first driving member (4) to be threadedly sleeved, and the sliding rod (801) is radially slidably provided inside the side wall of the bottom end of the main body (3).

3. The temperature detection device for chemical safety according to claim 1, characterized in that: The bottom end of the threaded block (7) is conical, with the tip of the cone facing downwards. A rotating shaft (9) is coaxially fixed to the top end of the threaded block (7). An operating handle (10) is fixed to one end of the rotating shaft (9) that extends out of the top end of the main body (3) in a rotationally cooperative manner.

4. The temperature detection device for chemical safety according to claim 1, characterized in that: The first driving member (4) further comprises a threaded cover (401) and a pressure plate (403). The threaded cover (401) is coaxially threadedly sleeved on the main body (3). The pressure plate (403) has a sliding sleeve (405) coaxially on the top end surface near the edge. The sliding sleeve (405) is axially slidably mounted inside the bottom end of the threaded cover (401) and contacts the bottom end of a pressure spring (404) coaxially mounted inside the threaded cover (401). A positioning cylinder (402) protruding downward at the center of the pressure plate (403) and the center of the threaded cover (401) are axially slidably and sealingly sleeved together, so that when the threaded cover (401) rotates around the thread of the main body (3), the pressure spring (404) is gradually compressed. The bottom end of the positioning cylinder (402) is used to be connected to the second driving member (5) for synchronous rotation.

5. The temperature detection device for chemical safety according to claim 4, characterized in that: The sealing gasket (6) is coaxially embedded in the bottom end surface of the pressing plate (403) near its edge.

6. The temperature detection device for chemical safety according to claim 4, characterized in that: The second driving member (5) also includes a rotating body (502) installed on the main body (3) so as to rotate in situ, the top of the rotating body (502) is synchronously connected to the bottom of the positioning cylinder (402), and the end face of the bottom end is a plane gear (503); a circle of the moving column (505) is provided below the plane gear (503), one end of the moving column (505) is threadedly plugged into the main body (3), and the other end is used to contact the inner wall of the temperature measuring hole (101), and a cylindrical gear (504) is coaxially fixed on the moving column (505), and all the cylindrical gears (504) are synchronously meshed with the plane gear (503).

7. The temperature detection device for chemical safety according to claim 6, characterized in that: The other end of the movable column (505) is preferably fixed with a positioning block of a tile-like structure, and the outer arc surface of the positioning block is smooth.

8. The temperature detection device for chemical safety according to claim 6, characterized in that: A plurality of transmission rods (501) are provided on the top surface of the rotating body (502), and the transmission rods (501) are axially slidably mounted in the positioning cylinder (402), so that when the positioning cylinder (402) rotates and moves downward, it can drive the rotating body (502) to rotate.

9. The temperature detection device for chemical safety according to claim 1, characterized in that: The third driving member (8) further comprises an outer rubber ring (802) and an inner rubber ring (803), wherein the inner rubber ring (803) connects all the sliding rods (801) at their ends close to each other in series on a circle, and the outer rubber ring (802) connects all the sliding rods (801) at their other ends in series on a circle, so that under the action of the two concentric rubber rings, all the sliding rods (801) maintain a relatively regular circular array arrangement, and the ends of all the sliding rods (801) close to each other can maintain effective contact with the side wall of the threaded block (7).

10. The temperature detection device for chemical safety according to claim 1, characterized in that: The rubber ring passes through the end of the sliding rod (801) or is embedded in the surface of the sliding rod (801) near the end; a plurality of sliding rods (801) are provided with an axial ring (805) at one end close to each other, and the axial ring (805) is connected to the inner wall of the main body (3) via a supporting spring (804).

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