Hall sensor with high stability

Abstract

The invention relates to the field of Hall sensors, and particularly discloses a high-stability Hall sensor which comprises a fine adjustment assembly, an adjustment assembly is arranged at the upper end of the fine adjustment assembly, a mounting assembly is arranged on the outer surface of the adjustment assembly, and a sensor body is fixedly connected to the upper end of the mounting assembly. The mounting assembly comprises a clamping block arranged on the outer surface of the adjusting assembly. By the adoption of the structure, after the clamping block completely enters the clamping frame, the position of the clamping hole is consistent with the position of the circular groove, at the moment, the clamping head can pop out of the circular groove under the action of the clamping spring, the clamping head and the clamping hole are clamped, and therefore the clamping effect can be achieved; and the sensor body can be mounted in a clamping manner, so that the sensor body is more convenient to dismount, and meanwhile, the sensor body is more stable to mount under the limiting of a clamping block and a clamping frame.

Description

Technical Field

[0001] The present invention relates to the field of Hall sensors, and in particular to a Hall sensor with high stability. Background Art

[0002] A Hall sensor is a magnetic field sensor made according to the Hall effect. The current Hall sensor includes a coil and a Hall element clamped on the coil; when using the Hall sensor to measure current, first pass a cable through the center of the coil, and then apply a target current to the cable through an external power supply. When the current in the cable passes through the coil, the Hall element generates a potential difference, and the coil generates a magnetic field. An output signal is formed under the action of the magnetic field. When the magnetic field generated by the coil is the same as the magnetic field generated by the energized cable, the detection is completed by detecting the output current.

[0003] According to the Chinese patent with the publication number "CN215767120U", a Hall sensor with high stability is disclosed, which includes a main body. Two suction cups are provided below the main body, and the two suction cups are located on both sides below the main body. The root of the suction cup is embedded in the main body, and the root of the suction cup is in interference fit with the main body. There are 8 protrusions on the outer periphery of the suction cup, and the 8 protrusions are evenly distributed circumferentially around the suction cup. The shape of the protrusion is hemispherical, the plane of the protrusion is connected to the bottom surface of the main body, and the radius of the protrusion is smaller than the height of the suction cup outside the main body. This Hall sensor with high stability can achieve the adsorption function through the suction cup, improving the overall stability. Rubber protrusions are added around the suction cup to further improve the stability.

[0004] From the above structure, it can be seen that the adsorption function is achieved through the suction cup, improving the overall stability. Rubber protrusions are added around the suction cup to further improve the stability. Although the adsorption effect is achieved through the suction cup, the stability is not good due to simple fixation by the suction cup. At the same time, the suction force weakens after long-term use of the suction cup, resulting in the situation that the sensor drops. Therefore, according to the above disadvantages, a Hall sensor that is easy to disassemble and has stable installation is designed. At the same time, the existing Hall sensor cannot be finely adjusted after installation, resulting in the situation that the position of the sensor cannot be finely adjusted after being fixed during use. Summary of the Invention

[0005] The purpose of the present invention is to provide a Hall sensor with high stability to solve the problem of unstable installation proposed in the above background art.

[0006] To achieve the above object, the present invention provides a Hall sensor with high stability, including a fine-tuning component. An adjustment component is arranged at the upper end of the fine-tuning component, and an installation component is arranged on the outer surface of the adjustment component. A sensor body is fixedly connected to the upper end of the installation component. The installation component includes a clamping block arranged on the outer surface of the adjustment component. Circular grooves are formed on both sides of the clamping block, and a clamping spring is fixedly connected inside the circular groove. The other end of the clamping spring is fixedly connected to a clamping head. The lower end of the sensor body is fixedly connected to a mounting plate, and a clamping frame is fixedly connected to the lower end of the mounting plate. Clamping holes are formed on both sides of the clamping frame, and the clamping holes are clamped with the clamping heads. The clamping block is inserted into the clamping frame; by inserting the clamping block into the inside of the clamping frame, the clamping head is squeezed into the inside of the circular groove during insertion. Then, after the clamping block completely enters the inside of the clamping frame, the position of the clamping hole is the same as that of the circular groove. At this time, the clamping head will pop out of the circular groove under the action of the clamping spring, so that the clamping head is clamped with the clamping hole, thereby achieving a clamping effect, and further enabling the installation of the sensor body. Moreover, the installation by clamping makes it more convenient to disassemble. At the same time, under the limitation of the clamping block and the clamping frame, the sensor body is installed more stably.

[0007] In a further embodiment, the fine-tuning component includes a fine-tuning frame. A fine-tuning screw is rotatably connected inside the fine-tuning frame. A fine-tuning threaded part is threadedly connected to the outer surface of the fine-tuning screw. A connecting plate is fixedly connected to the upper end of the fine-tuning threaded part. The other end of the fine-tuning screw penetrates through the fine-tuning frame and is fixedly connected to a fine-tuning knob; by rotating the adjustment knob, the fine-tuning screw is driven to rotate. The rotation of the fine-tuning screw causes the fine-tuning threaded part connected thereto to move. Thus, under the movement of the fine-tuning threaded part, the connecting plate is driven to move. Furthermore, under the movement of the connecting plate, the installation component can be driven to move, so that the movement of the installation component can achieve the movement effect of the sensor body, and further enable the fine-tuning effect of the sensor body.

[0008] In a further embodiment, the fine-tuning threaded part is slidably inserted into the fine-tuning frame. Limiting guide rods are fixedly connected to both sides inside the fine-tuning frame. Limiting guide holes are formed on both sides of the fine-tuning threaded part, and the limiting guide holes are slidably inserted into the limiting guide rods.

[0009] In a further embodiment, the adjustment component includes grooves formed on the surfaces of the fine-tuning threaded part and the connecting plate. A driven bevel gear is rotatably connected inside the grooves. An adjustment screw is fixedly connected to the upper end of the driven bevel gear. An adjustment screw hole is formed at the lower end of the clamping block, and the adjustment screw hole is threadedly connected to the adjustment screw.

[0010] In a further embodiment, a connecting rod is rotatably connected to the inner side of the groove. The connecting rod penetrates through the fine-tuning threaded member. An adjusting knob is fixedly connected to the outer end of the connecting rod. A driving bevel gear is fixedly connected to the other end of the connecting rod. The driving bevel gear is meshed with a driven bevel gear; by rotating the adjusting knob, the driving bevel gear is driven to rotate. Under the rotation of the driving bevel gear, the driven bevel gear meshed therewith rotates. The rotation of the driven bevel gear can drive the adjusting screw rod to rotate, so that the adjusting screw rod rotates inside the adjusting screw hole. Under the action of the thread principle, the mounting assembly will move upward while the adjusting screw rod and the adjusting screw hole rotate. Thus, when the mounting assembly moves upward, the height of the sensor body can be adjusted.

[0011] In a further embodiment, both sides of the clamping block are slidably inserted into the surface of the connecting plate. Limiting plates are fixedly connected to both sides of the clamping block. Limiting insertion rods are fixedly connected to the lower ends of the limiting plates. Limiting insertion holes are formed in both sides of the connecting plate. The limiting insertion holes are slidably inserted with the limiting insertion rods.

[0012] In a further embodiment, fixing edges are fixedly connected to both sides of the fine-tuning frame. Fixing through holes are formed in the outer surfaces of the fixing edges. Fixing screws are inserted into the fixing through holes. The fixing screws penetrate through the fixing through holes and are threadedly connected to the base layer.

[0013] In a further embodiment, sliding grooves are formed in both sides of the clamping frame. Sliding rods are slidably connected to the inside of the sliding grooves. Release blocks are fixedly connected to the inner sides of the sliding rods. The release blocks are inserted into the clamping holes.

[0014] In a further embodiment, fixing plates one are fixedly connected to both sides of the sensor body. Fixing plates two are fixedly connected to both sides of the mounting plate. Mounting through holes are formed in the surfaces of the fixing plates one and the fixing plates two. Mounting screws are inserted into the mounting through holes. Mounting nuts are threadedly connected to the outer surfaces of the mounting screws.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] First, in the present invention, through the provided installation component, when the sensor body needs to be installed during use, by inserting the clamping block into the inside of the clamping frame, during the insertion, the clamping head is squeezed and enters the inside of the circular groove. Then, after the clamping block completely enters the inside of the clamping frame, the position of the clamping hole is aligned with the position of the circular groove. At this time, the clamping head will pop out of the circular groove under the action of the clamping spring, so that the clamping head is clamped with the clamping hole, thus achieving a clamping effect, and further enabling the installation effect of the sensor body. Moreover, the installation by means of clamping makes it more convenient to disassemble. At the same time, under the limitation of the clamping block and the clamping frame, the sensor body is installed more stably;

[0017] Second, in the present invention, through the provided fine-tuning component, after the installation of the sensor body is completed during use, when the position of the sensor body needs to be fine-tuned, by rotating the adjusting knob, the fine-tuning screw rod is driven to rotate. The rotation of the fine-tuning screw rod causes the fine-tuning threaded part threadedly connected thereto to move. Thus, under the movement of the fine-tuning threaded part, the connecting plate is driven to move. Further, under the movement of the connecting plate, the installation component can be driven to move, so that the movement of the installation component can achieve the effect of moving the sensor body, and further enabling the fine-tuning effect of the sensor body;

[0018] Third, in the present invention, through the provided adjusting component, when the height of the sensor body needs to be adjusted during use, by rotating the adjusting knob, the driving bevel gear is driven to rotate. And under the rotation of the driving bevel gear, the driven bevel gear meshed therewith rotates. The rotation of the driven bevel gear drives the adjusting screw rod to rotate, so that the adjusting screw rod rotates inside the adjusting screw hole. And under the action of the thread principle, the installation component will move upward while the adjusting screw rod and the adjusting screw hole rotate. Further, when the installation component moves upward, the height of the sensor body can be adjusted; BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the present invention;

[0020] Figure 2 is a bottom view structural schematic diagram of the present invention;

[0021] Figure 3 is a structural schematic diagram of the installation screw and the installation nut in the present invention;

[0022] Figure 4 is a structural schematic diagram of the installation component in the present invention;

[0023] Figure 5 is a structural schematic diagram of the clamping frame in the present invention;

[0024] Figure 6 is a structural schematic diagram of the sensor body in the present invention;

[0025] Figure 7 It is a schematic structural diagram of the adjustment component in the present invention;

[0026] Figure 8 It is a schematic structural diagram of the fine-tuning threaded part in the present invention.

[0027] In the figure: 1. Fine-tuning component; 111. Fine-tuning frame; 112. Fine-tuning screw rod; 113. Fine-tuning threaded part; 114. Fine-tuning knob; 115. Connecting plate; 2. Adjustment component; 221. Adjusting screw hole; 222. Groove; 223. Driven bevel gear; 224. Adjusting screw rod; 225. Connecting rod; 226. Adjusting knob; 227. Driving bevel gear; 3. Mounting component; 31. Clamping frame; 32. Clamping hole; 33. Clamping block; 34. Circular groove; 35. Clamping spring; 36. Clamping head; 4. Sensor body; 5. Fixed edge; 6. Fixed through hole; 7. Fixed screw; 8. Limit guiding rod; 9. Limit guiding hole; 10. Limit inserting rod; 11. Limit inserting hole; 12. Limit plate; 13. Sliding groove; 14. Sliding rod; 15. Release block; 16. Fixed plate one; 17. Fixed plate two; 18. Mounting screw; 19. Mounting nut; 20. Mounting through hole; 21. Mounting plate. Specific embodiments

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] Please refer to Figure 1-Figure 8, in the embodiments of the present invention, a Hall sensor with high stability includes a fine-tuning component 1. An adjusting component 2 is arranged at the upper end of the fine-tuning component 1. An installation component 3 is arranged on the outer surface of the adjusting component 2. A sensor body 4 is fixedly connected to the upper end of the installation component 3. The installation component 3 includes a clamping block 33 arranged on the outer surface of the adjusting component 2. Circular grooves 34 are formed on both sides of the clamping block 33. A clamping spring 35 is fixedly connected inside the circular groove 34. The other end of the clamping spring 35 is fixedly connected to a clamping head 36. An installation plate 21 is fixedly connected to the lower end of the sensor body 4. A clamping frame 31 is fixedly connected to the lower end of the installation plate 21. Clamping holes 32 are formed on both sides of the clamping frame 31. The clamping holes 32 are engaged with the clamping heads 36. The clamping block 33 is inserted into the clamping frame 31. Fixing plates one 16 are fixedly connected to both sides of the sensor body 4. Fixing plates two 17 are fixedly connected to both sides of the installation plate 21. Installation through holes 20 are formed on the surfaces of the fixing plates one 16 and the fixing plates two 17. Installation screws 18 are inserted into the installation through holes 20. Installation nuts 19 are threadedly connected to the outer surfaces of the installation screws 18; by inserting the clamping block 33 into the clamping frame 31, when inserting, the clamping heads 36 are squeezed into the circular grooves 34. Then, after the clamping block 33 completely enters the clamping frame 31, the positions of the clamping holes 32 are consistent with the positions of the circular grooves 34. At this time, the clamping heads 36 will pop out of the circular grooves 34 under the action of the clamping springs 35, so that the clamping heads 36 are engaged with the clamping holes 32, thus achieving a clamping effect, and further enabling the installation of the sensor body 4. Moreover, the installation by clamping makes it more convenient to disassemble. At the same time, under the limitation of the clamping block 33 and the clamping frame 31, the sensor body 4 is installed more stably.

[0030] Please refer to Figure 1 , Figure 2 , Figure 7 and Figure 8 , the fine-tuning component 1 includes a fine-tuning frame 111. A fine-tuning screw 112 is rotatably connected inside the fine-tuning frame 111. A fine-tuning threaded part 113 is threadedly connected to the outer surface of the fine-tuning screw 112. A connecting plate 115 is fixedly connected to the upper end of the fine-tuning threaded part 113. The other end of the fine-tuning screw 112 penetrates through the fine-tuning frame 111 and is fixedly connected to a fine-tuning knob 114; by rotating the adjusting knob 226, the fine-tuning screw 112 is driven to rotate. The rotation of the fine-tuning screw 112 causes the fine-tuning threaded part 113 threadedly connected thereto to move. Thus, under the movement of the fine-tuning threaded part 113, the connecting plate 115 is driven to move. Further, under the movement of the connecting plate 115, the installation component 3 can be driven to move. Therefore, the movement of the installation component 3 can achieve the movement effect on the sensor body 4, and further enable the fine-tuning effect on the sensor body 4.

[0031] Please refer to Figure 1 and Figure 7, the fine-tuning threaded part 113 and the fine-tuning frame 111 are slidably inserted into each other. On both inner sides of the fine-tuning frame 111, there are fixedly connected limit guiding rods 8. On both sides of the fine-tuning threaded part 113, there are opened limit guiding holes 9, and the limit guiding holes 9 and the limit guiding rods 8 are slidably inserted into each other; by providing the limit guiding rods 8 and the limit guiding holes 9, the fine-tuning threaded part 113 can be limited, so that the fine-tuning threaded part 113 is more stable when moving during use.

[0032] Please refer to Figure 1 , Figure 2 and Figure 7 , the adjusting assembly 2 includes a groove 222 opened on the surfaces of the fine-tuning threaded part 113 and the connecting plate 115. Inside the groove 222, there is rotatably connected a driven bevel gear 223. At the upper end of the driven bevel gear 223, there is fixedly connected an adjusting screw rod 224. At the lower end of the clamping block 33, there is opened an adjusting screw hole 221, and the adjusting screw hole 221 and the adjusting screw rod 224 are threadedly connected to each other. Inside the groove 222, there is rotatably connected a connecting rod 225. The connecting rod 225 passes through the fine-tuning threaded part 113. At the outer end of the connecting rod 225, there is fixedly connected an adjusting knob 226. At the other end of the connecting rod 225, there is fixedly connected a driving bevel gear 227, and the driving bevel gear 227 and the driven bevel gear 223 are meshed and connected to each other; by rotating the adjusting knob 226, the driving bevel gear 227 is driven to rotate. Under the rotation of the driving bevel gear 227, the driven bevel gear 223 meshed with it rotates. The rotation of the driven bevel gear 223 can drive the adjusting screw rod 224 to rotate, so that the adjusting screw rod 224 rotates inside the adjusting screw hole 221. Under the action of the thread principle, the mounting assembly 3 will move upward while the adjusting screw rod 224 and the adjusting screw hole 221 rotate. Thus, when the mounting assembly 3 moves upward, the height of the sensor body 4 can be adjusted.

[0033] Please refer to Figure 2 and Figure 4 , both sides of the clamping block 33 and the surface of the connecting plate 115 are slidably inserted into each other. On both sides of the clamping block 33, there are fixedly connected limit plates 12. At the lower ends of the limit plates 12, there are fixedly connected limit insertion rods 10. On both sides of the connecting plate 115, there are opened limit insertion holes 11, and the limit insertion holes 11 and the limit insertion rods 10 are slidably inserted into each other; by providing the limit insertion rods 10 and the limit insertion holes 11, the mounting assembly 3 can be limited during use, so that when using the adjusting assembly 2, the situation that the mounting assembly 3 rotates can be avoided, and the situation that the mounting assembly 3 cannot be adjusted due to rotation can be avoided.

[0034] Please refer to Figure 1, fixed edges 5 are fixedly connected to both sides of the fine-tuning frame 111. Fixing through holes 6 are formed on the outer surfaces of the fixed edges 5. Fixing screws 7 are inserted into the fixing through holes 6. The fixing screws 7 penetrate the fixing through holes 6 and are threadedly connected to the base layer. By providing the fixing screws 7 and fixing screw holes, the device can be conveniently fixed during use, and the installation with the fixing screws 7 makes it more convenient to disassemble.

[0035] Please refer to Figure 3 , sliding grooves 13 are formed on both sides of the clamping frame 31. Sliding rods 14 are slidably connected to the inside of the sliding grooves 13. Release blocks 15 are fixedly connected to the inner sides of the sliding rods 14. The release blocks 15 are inserted into the clamping holes 32. By pressing down the sliding rods 14, the sliding rods 14 drive the release blocks 15 to move into the clamping holes 32. Thus, when the release blocks 15 enter the clamping holes 32, the clamping heads 36 can be extruded, and when the clamping heads 36 are extruded from the clamping holes 32, the disassembly effect of the installation component 3 can be facilitated, and the disassembly effect of the sensor body 4 can be facilitated during use.

[0036] The working principle of the present invention is as follows: When in use, the fixing screw 7 and the fixing screw hole are provided so that the device can be conveniently fixed during use. Then, the sensor body 4 is installed through the mounting screw 18 and the mounting nut 19. After the installation is completed, the sensor body 4 can be assembled. By inserting the clamping block 33 into the inside of the clamping frame 31, when inserting, the clamping head 36 is squeezed into the inside of the circular groove 34. Then, after the clamping block 33 completely enters the inside of the clamping frame 31, the position of the clamping hole 32 is consistent with the position of the circular groove 34. At this time, the clamping head 36 will pop out of the circular groove 34 under the action of the clamping spring 35, so that the clamping head 36 is clamped with the clamping hole 32, thus achieving the clamping effect, and further enabling the installation effect of the sensor body 4. Moreover, the installation by means of clamping makes it more convenient to disassemble. At the same time, under the limitation of the clamping block 33 and the clamping frame 31, the sensor body 4 is installed more stably. After the installation is completed, when the position of the sensor body 4 needs to be finely adjusted, by rotating the adjusting knob 226, the fine adjustment screw rod 112 is driven to rotate. The rotation of the fine adjustment screw rod 112 causes the fine adjustment threaded part 113 threadedly connected thereto to move. As a result, under the movement of the fine adjustment threaded part 113, the connecting plate 115 is driven to move. Further, under the movement of the connecting plate 115, the mounting assembly 3 can be driven to move, so that the movement of the mounting assembly 3 can achieve the movement effect on the sensor body 4, and further enable the fine adjustment effect on the sensor body 4. And when it is necessary to adjust the height of the sensor body 4, by rotating the adjusting knob 226, the driving bevel gear 227 is driven to rotate. Under the rotation of the driving bevel gear 227, the driven bevel gear 223 meshed therewith rotates. The rotation of the driven bevel gear 223 drives the adjusting screw rod 224 to rotate, so that the adjusting screw rod 224 rotates inside the adjusting screw hole 221. Under the action of the thread principle, the mounting assembly 3 will move upward while the adjusting screw rod 224 and the adjusting screw hole 221 rotate. Further, when the mounting assembly 3 moves upward, the height of the sensor body 4 can be adjusted. And the wiring structure of the sensor body 4 is the same as the existing sensor wiring structure, and at the same time, it does not affect the wiring method of the sensor body 4.

Claims

1. A Hall sensor with high stability, characterized in that: It includes a fine-tuning component, the upper end of the fine-tuning component is provided with an adjustment component, the outer surface of the adjustment component is provided with a mounting component, the upper end of the mounting component is fixedly connected to a sensor body, the mounting component includes a clamping block arranged on the outer surface of the adjustment component, both sides of the clamping block are provided with circular grooves, the inside of the circular groove is fixedly connected with a clamping spring, the other end of the clamping spring is fixedly connected with a clamping joint, the lower end of the sensor body is fixedly connected with a mounting plate, the lower end of the mounting plate is fixedly connected with a clamping frame, both sides of the clamping frame are provided with clamping holes, the clamping holes and the clamping joint are clamped with each other, and the clamping block and the clamping frame are plugged into each other.

2. A Hall sensor with high stability according to claim 1, characterized in that: The fine-tuning assembly includes a fine-tuning frame, the interior of the fine-tuning frame is rotatably connected to a fine-tuning screw, the outer surface of the fine-tuning screw is threadedly connected to a fine-tuning threaded piece, the upper end of the fine-tuning threaded piece is fixedly connected to a connecting plate, and the other end of the fine-tuning screw passes through the fine-tuning frame and is fixedly connected to a fine-tuning handle.

3. A Hall sensor with high stability according to claim 2, characterized in that: The fine-tuning screw and the fine-tuning frame are slidably plugged into each other, and both sides of the interior of the fine-tuning frame are fixedly connected to limit guide rods. Both sides of the fine-tuning screw are provided with limit guide holes, and the limit guide holes and the limit guide rods are slidably plugged into each other.

4. A Hall sensor with high stability according to claim 3, characterized in that: The adjustment component includes a groove provided on the surface of the fine-tuning threaded piece and the connecting plate, a driven bevel gear is rotatably connected inside the groove, an adjusting screw is fixedly connected to the upper end of the driven bevel gear, an adjusting screw hole is provided at the lower end of the clamping block, and the adjusting screw hole and the adjusting screw are threadedly connected to each other.

5. A Hall sensor with high stability according to claim 4, characterized in that: The inner side of the groove is rotatably connected with a connecting rod, the connecting rod passes through a fine-tuning threaded piece, the outer end of the connecting rod is fixedly connected with an adjusting handle, the other end of the connecting rod is fixedly connected with a driving bevel gear, and the driving bevel gear and the driven bevel gear are meshed and connected with each other.

6. A Hall sensor with high stability according to claim 5, characterized in that: The two sides of the clamping block are slidably plugged into the surface of the connecting plate, the two sides of the clamping block are fixedly connected to the limiting plates, the lower ends of the limiting plates are fixedly connected to the limiting plug rods, and the two sides of the connecting plate are provided with limiting plug holes, and the limiting plug holes and the limiting plug rods are slidably plugged into each other.

7. A Hall sensor with high stability according to claim 6, characterized in that: Both sides of the fine-tuning frame are fixedly connected with fixed edges, the outer surfaces of the fixed edges are provided with fixed through holes, the interiors of the fixed through holes are plugged with fixed screws, and the fixed screws penetrate the fixed through holes and are threadedly connected to the base layer.

8. A Hall sensor with high stability according to claim 1, characterized in that: Sliding grooves are provided on both sides of the clamping frame, and sliding rods are slidably connected inside the sliding grooves. Release blocks are fixedly connected inside the sliding rods, and the release blocks are plugged into the clamping holes.

9. A Hall sensor with high stability according to claim 1, characterized in that: A fixing plate 1 is fixedly connected to both sides of the sensor body, and a fixing plate 2 is fixedly connected to both sides of the mounting plate. The surfaces of the fixing plate 1 and the fixing plate 2 are provided with mounting through holes, and mounting screws are inserted into the inside of the mounting through holes, and the outer surfaces of the mounting screws are threadedly connected with mounting nuts.

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