Sealing structure of junction box of electromagnetic flowmeter
By designing a combination of sealing components and fixing components in the electromagnetic flowmeter junction box, the problem of rust in the fixing method of the junction box in humid environments is solved, and a better sealing effect and convenient maintenance and dismantling process is achieved.
Patent Information
- Application Number
- CN202421502147.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-28
- Publication Date
- 2025-04-22
- Estimated Expiration
- 2034-06-28
AI Technical Summary
The wiring structure and instrument panel fixing method of the existing electromagnetic flowmeter are prone to rust in humid environments, resulting in screws dead or metal fatigue cracking, which is inconvenient for maintenance.
An electromagnetic flowmeter junction box sealing structure is designed, adopting a combination of sealing components and fixing components. The sealing components achieve sealing effect through sealing plates and spring mechanisms, and the fixing components are conveniently disassembled and locked through L-shaped rods and limit rods.
It improves the sealing effect of the junction box, is easy to use in humid environments, reduces the problem of screw rust, and facilitates the inspection of internal parts of the junction box and the removal of seals.
Smart Images
Figure CN222785743U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electromagnetic flowmeters, in particular to a sealing structure of a junction box of an electromagnetic flowmeter. Background Art
[0002] The magnetic flowmeter is a new type of flow measurement instrument that developed rapidly in the 1950s and 1960s with the development of electronic technology. The electromagnetic flowmeter is an instrument that uses the principle of electromagnetic induction to measure the flow of conductive fluids based on the electromotive force induced when the conductive fluid passes through an external magnetic field.
[0003] The wiring structure and instrument panel of the common electromagnetic flowmeters on the market are generally designed to be fixed with a metal shell. The fixing method is often to use screws and sealing rubber rings for fixing and sealing. If this sealing method encounters rainy weather, the screws will be exposed to the outdoors for a long time. It is easy to encounter humid weather when the seasons change. When exposed to humid weather for a long time, the screws will rust. After rusting, the screws may be nailed or metal fatigue cracked. When the staff is inspecting the inside of the metal shell, the screws may rust and be difficult to unscrew, which may cause instability in the inspection of the internal parts of the junction box.
[0004] To this end, we propose a sealing structure for an electromagnetic flowmeter junction box. Summary of the invention
[0005] The utility model aims to provide a sealing structure of a junction box of an electromagnetic flowmeter to solve the problems raised in the above-mentioned background technology.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sealing structure of an electromagnetic flowmeter junction box, comprising a junction box body, a sealing assembly, wherein the sealing assembly is installed inside the junction box body, the sealing assembly is used to seal the junction box body, and the sealing assembly can make the sealing effect of the junction box body better, and a fixing assembly, wherein the fixing assembly is installed on the left side of the junction box body, the fixing assembly is used to lock the position of the sealing assembly, and the fixing assembly can facilitate the disassembly and maintenance of the junction box body.
[0007] Preferably, the sealing assembly includes a sealing plate, which is clamped with the left side surface of the junction box body, and the right arm of the junction box body is fixedly connected to the limiting block. A T-shaped groove is provided on the right side surface of the sealing plate, and the position of the T-shaped groove corresponds to the position of the limiting block. Square grooves are provided on the upper surface and bottom surface of the limiting block, and the inner walls of the two square grooves are fixedly connected with first springs, and the other ends of the two first springs are fixedly connected with limiting balls.
[0008] Preferably, a first sealing ring is fixedly mounted on the left side of the junction box body, and the size of the first sealing ring matches the size of the side of the sealing plate.
[0009] Preferably, two circles of second sealing rings are installed inside the junction box body, and the distance between the two circles of the second sealing rings is adapted to the thickness of the sealing plate.
[0010] Preferably, the size of the limiting ball matches the longitudinal size of the T-slot.
[0011] Preferably, the fixing assembly comprises an L-shaped rod, which is fixedly mounted on the side of the sealing plate, and a through groove is provided on the upper surface of the L-shaped rod. A guide sleeve is fixedly connected to the left side of the junction box body, and a guide disc is clamped inside the guide sleeve. A second spring is fixedly connected between the bottom surface of the guide disc and the bottom wall of the guide sleeve, and a connecting rod is fixedly connected to the upper surface of the guide disc. The connecting rod passes through the upper surface of the guide sleeve and is slidably connected to the guide sleeve. A limiting rod is fixedly connected to the upper surface of the connecting rod, and the size of the limiting rod is matched with the size of the through groove. Two limiting grooves are provided on the upper surface of the sealing plate, and the positions of the two limiting grooves are at the center of the upper end of the through groove.
[0012] Preferably, the position of the bottom surface of the L-shaped rod corresponds to the position of the upper surface of the guide sleeve.
[0013] Preferably, the length of the limiting rod is smaller than the length of the through slot.
[0014] The utility model has at least the following beneficial effects:
[0015] 1. When it is necessary to inspect the internal components of the junction box body, the staff first pinches the limit rod with his hand and then rotates the limit rod counterclockwise a part, then lifts the limit rod a part so that it is on the upper part of the fixed component, and then continues to rotate the limit rod counterclockwise to keep it parallel to the through groove, and then pulls the L-shaped rod. By setting the clamping connection between the sealing plate and the junction box body, the L-shaped rod can be pulled out from the inside of the junction box body, and then the staff can easily inspect the components inside the junction box body. When it is necessary to fix the position of the sealing plate, first insert the sealing plate into the interior of the junction box body, then lift the limit rod and rotate it clockwise a part so that the limit rod is stuck in the inside of the limit groove. At this time, under the influence of the second spring force and torsion, the position of the L-shaped rod can be firmly fixed, and the position of the sealing plate can be further locked.
[0016] By setting up the fixing components, the purpose of facilitating the disassembly of the junction box body can be achieved, making it more convenient for the staff to inspect the components inside the junction box body, and reducing the problem that the wiring structure and the instrument panel of the common electromagnetic flowmeter on the market are often fixed and sealed with screws using sealing rubber rings. If the screws of this sealing method are rusted, it is not convenient to inspect the inside of the junction box body.
[0017] 2. When the sealing plate is inserted into the junction box body, the limit block fixedly installed on the inner wall of the junction box body will be inserted into the T-slot, and when the limit block just contacts the T-slot, the limit ball is squeezed by the T-slot and the limit ball is retracted into the square groove. When the limit block is inserted into the T-slot and is in place, the limit ball will be partially popped out due to the elastic force of the first spring, and the position of the sealing plate can be initially fixed. When the sealing plate is pulled out, because the shape of the limit ball is spherical, the staff only needs to pull the sealing plate with a little force to release the lock of the limit block on the T-slot, and then the sealing plate can be pulled out. The first sealing ring and the second sealing ring can be provided to seal the gap where the sealing plate is installed to prevent water from entering the interior of the junction box body.
[0018] By providing the sealing assembly, the overall sealing effect of the device can be improved, and it can be more convenient to dismantle and repair the sealing member of the junction box body. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0020] Figure 2 It is a schematic diagram of the side structure of the utility model;
[0021] Figure 3 It is a side sectional schematic diagram of the utility model;
[0022] Figure 4 For this utility model Figure 3 A schematic diagram of the structure at A;
[0023] Figure 5 This is a schematic diagram of the cross-sectional structure of the utility model when viewed from above;
[0024] Figure 6 For this utility model Figure 5 Enlarged schematic diagram of the structure at B.
[0025] In the figure: 1. sealing assembly; 2. fixing assembly; 3. junction box body; 4. first sealing ring; 5. sealing plate; 6. second sealing ring; 7. limiting block; 8. T-shaped slot; 9. square slot; 10. first spring; 11. limiting ball; 12. L-shaped rod; 13. through slot; 14. guide sleeve; 15. connecting rod; 16. second spring; 17. guide disc; 18. limiting rod; 19. limiting slot. DETAILED DESCRIPTION
[0026] 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.
[0027] See also Figure 1-Figure 6 , the utility model provides a technical solution:
[0028] Embodiment 1, a sealing structure of an electromagnetic flowmeter junction box, includes a junction box body 3, a sealing component 1, the sealing component 1 is installed inside the junction box body 3, the sealing component 1 is used to seal the junction box body 3, the sealing component 1 can make the sealing effect of the junction box body 3 better, and a fixing component 2, the fixing component 2 is installed on the left side of the junction box body 3, the fixing component 2 is used to lock the position of the sealing component 1, and the fixing component 2 can facilitate the disassembly and maintenance of the junction box body 3.
[0029] The sealing assembly 1 includes a sealing plate 5, which is clamped with the left side surface of the junction box body 3. The right arm of the junction box body 3 is fixedly connected to the limiting block 7. A T-shaped groove 8 is provided on the right side surface of the sealing plate 5. The position of the T-shaped groove 8 corresponds to the position of the limiting block 7. Square grooves 9 are provided on the upper surface and the bottom surface of the limiting block 7. The inner walls of the two square grooves 9 are fixedly connected with first springs 10, and the other ends of the two first springs 10 are fixedly connected with limiting balls 11.
[0030] A first sealing ring 4 is fixedly mounted on the left side of the junction box body 3 . The size of the first sealing ring 4 matches the size of the side of the sealing plate 5 , which can effectively prevent water from entering the side of the junction box body 3 .
[0031] Two circles of second sealing rings 6 are installed inside the junction box body 3 . The distance between the two circles of second sealing rings 6 matches the thickness of the sealing plate 5 , which can effectively prevent water from entering the back of the junction box body 3 .
[0032] The size of the limiting ball 11 is matched with the longitudinal size of the T-shaped groove 8 , so that the limiting ball 11 can initially limit the position of the sealing plate 5 when affected by the elastic force.
[0033] When the sealing plate 5 is inserted into the interior of the junction box body 3, the limit block 7 fixedly installed on the inner wall of the junction box body 3 will be inserted into the interior of the T-slot 8. When the limit block 7 just contacts the T-slot 8, the limit ball 11 is squeezed by the T-slot 8, which will cause the limit ball 11 to retract into the interior of the square groove 9. When the limit block 7 is inserted into the T-slot 8 and is in place, the limit ball 11 is affected by the elastic force of the first spring 10 and a part of it will pop out. At this time, the position of the sealing plate 5 can be initially fixed. When the sealing plate 5 is pulled out, because the shape of the limit ball 11 is spherical, the staff only needs to pull the sealing plate 5 slightly to release the lock of the T-slot 8 on the limit block 7, and then the sealing plate 5 can be pulled out. The first sealing ring 4 and the second sealing ring 6 are set to seal the gap where the sealing plate 5 is installed to prevent water from entering the interior of the junction box body 3.
[0034] By providing the sealing assembly 1, the sealing effect of the entire device can be improved, and it can be more convenient to dismantle and repair the sealing member of the junction box body 3.
[0035] Embodiment 2, the fixing assembly 2, comprises an L-shaped rod 12, the L-shaped rod 12 is fixedly mounted on the side of the sealing plate 5, a through groove 13 is provided on the upper surface of the L-shaped rod 12, a guide sleeve 14 is fixedly connected to the left side of the junction box body 3, a guide disc 17 is clamped inside the guide sleeve 14, a second spring 16 is fixedly connected between the bottom surface of the guide disc 17 and the bottom wall of the guide sleeve 14, a connecting rod 15 is fixedly connected to the upper surface of the guide disc 17, the connecting rod 15 passes through the upper surface of the guide sleeve 14 and is slidably connected to the guide sleeve 14, a limiting rod 18 is fixedly connected to the upper surface of the connecting rod 15, the size of the limiting rod 18 is adapted to the size of the through groove 13, two limiting grooves 19 are provided on the upper surface of the sealing plate 5, and the positions of the two limiting grooves 19 are located at the center of the upper end of the through groove 13.
[0036] The position of the bottom surface of the L-shaped rod 12 corresponds to the position of the upper surface of the guide sleeve 14 , so that the limiting rod 18 can be smoothly inserted into the interior of the through groove 13 .
[0037] The length of the limiting rod 18 is smaller than the length of the through slot 13 , so that the limiting rod 18 can smoothly enter the upper part of the fixing assembly 2 from the through slot 13 .
[0038] When it is necessary to inspect the internal components of the junction box body 3, the staff first pinches the limit rod 18 with his hand and then rotates the limit rod 18 counterclockwise a part, then lifts the limit rod 18 a part so that it is at the upper part of the fixing component 2, and then continues to rotate the limit rod 18 counterclockwise to keep it parallel with the through groove 13, and then pulls the L-shaped rod 12. By setting the clamping connection between the sealing plate 5 and the junction box body 3, the L-shaped rod 12 can be pulled out from the inside of the junction box body 3, and then the staff can easily inspect the components inside the junction box body 3. When it is necessary to fix the position of the sealing plate 5, first insert the sealing plate 5 into the inside of the junction box body 3, then lift the limit rod 18 and rotate it clockwise a part so that the limit rod 18 is clamped into the inside of the limit groove 19. At this time, under the influence of the elastic force and torsion of the second spring 16, the position of the L-shaped rod 12 can be firmly fixed, and the position of the sealing plate 5 can be further locked.
[0039] By setting up the fixing component 2, the purpose of facilitating the disassembly of the junction box body 3 can be achieved, making it more convenient for the staff to inspect the components inside the junction box body 3, and reducing the common electromagnetic flowmeters on the market. The wiring structure and the instrument panel are often fixed and sealed with screws and sealing rubber rings. If the screws of this sealing method are rusted, it is not convenient to inspect the inside of the junction box body 3.
[0040] 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.
[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A sealing structure of an electromagnetic flowmeter junction box, comprising a junction box body (3), characterized in that: A sealing component (1), the sealing component (1) being installed inside a junction box body (3), the sealing component (1) being used to seal the junction box body (3), and the sealing component (1) can improve the sealing effect of the junction box body (3); A fixing component (2), the fixing component (2) being mounted on the left side of the junction box body (3), the fixing component (2) being used to lock the position of the sealing component (1), and the fixing component (2) being able to facilitate disassembly and maintenance of the junction box body (3).
2. The electromagnetic flowmeter junction box sealing structure according to claim 1, characterized in that: The sealing assembly (1) comprises a sealing plate (5), the sealing plate (5) being snap-fitted to the left side surface of the junction box body (3), the right arm of the junction box body (3) being fixedly connected to a limit block (7), the right side surface of the sealing plate (5) being provided with a T-shaped groove (8), the position of the T-shaped groove (8) corresponding to the position of the limit block (7), the upper surface and the bottom surface of the limit block (7) being provided with square grooves (9), the inner walls of the two square grooves (9) being fixedly connected to first springs (10), and the other ends of the two first springs (10) being fixedly connected to limit balls (11).
3. The electromagnetic flowmeter junction box sealing structure according to claim 2, characterized in that: A first sealing ring (4) is fixedly mounted on the left side of the junction box body (3); the size of the first sealing ring (4) matches the size of the side of the sealing plate (5).
4. The electromagnetic flowmeter junction box sealing structure according to claim 2, characterized in that: Two circles of second sealing rings (6) are installed inside the junction box body (3), and the distance between the two circles of the second sealing rings (6) is adapted to the thickness of the sealing plate (5).
5. The electromagnetic flowmeter junction box sealing structure according to claim 2, characterized in that: The size of the limiting ball (11) is adapted to the longitudinal size of the T-shaped groove (8).
6. The electromagnetic flowmeter junction box sealing structure according to claim 2, characterized in that: The fixing assembly (2) comprises an L-shaped rod (12), the L-shaped rod (12) being fixedly mounted on a side surface of a sealing plate (5), a through groove (13) being formed on an upper surface of the L-shaped rod (12), a guide sleeve (14) being fixedly connected to a left side surface of the junction box body (3), a guide disc (17) being clamped inside the guide sleeve (14), a second spring (16) being fixedly connected between a bottom surface of the guide disc (17) and a bottom wall of the guide sleeve (14), and the guide disc (17) being fixedly connected to a bottom wall of the guide sleeve (14). A connecting rod (15) is fixedly connected to the upper surface of the disk (17), the connecting rod (15) passes through the upper surface of the guide sleeve (14) and is slidably connected to the guide sleeve (14), a limiting rod (18) is fixedly connected to the upper surface of the connecting rod (15), the size of the limiting rod (18) is adapted to the size of the through groove (13), and two limiting grooves (19) are provided on the upper surface of the sealing plate (5), and the positions of the two limiting grooves (19) are located at the center of the upper end of the through groove (13).
7. The electromagnetic flowmeter junction box sealing structure according to claim 6, characterized in that: The position of the bottom surface of the L-shaped rod (12) corresponds to the position of the upper surface of the guide sleeve (14).
8. The electromagnetic flowmeter junction box sealing structure according to claim 6, characterized in that: The length of the limiting rod (18) is smaller than the length of the through slot (13).