Compression nut for vacuum electromagnetic starter

Abstract

The utility model discloses a compression nut for a vacuum electromagnetic starter, which comprises a first nut, a connecting cylinder is fixedly welded on the first nut, a second nut is fixedly welded at one end of the connecting cylinder far away from the first nut, and a connecting seat is fixedly welded at one end of the second nut far away from the connecting cylinder. A rotary knob seat is fixedly adhered to the connecting seat, a through groove is formed in the circle center of the rotary knob seat, the through groove penetrates through the connecting seat and is communicated with a screw hole of the second nut, a limiting rod is arranged in the through groove, two limiting blocks are fixedly welded to the end, close to the second nut, of the limiting rod, and a positioning seat is fixedly welded to the limiting rod. According to the utility model, the limiting rod can be inserted into the slot of the stud, and the two limiting blocks are driven to be inserted into the limiting groove, so that the compression nut and the stud are limited and fixed, and the problem that the compression effect of the compression nut is affected due to the fact that the compression nut is deflected and loosened due to long-term vibration of the vacuum electromagnetic starter is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to vacuum electromagnetic starter technical field, concretely is a kind of vacuum electromagnetic starter with compression nut. BACKGROUND

[0002] Underground working environment is complex, full of various flammable and explosive gas, so the electrical equipment under mine generally uses vacuum electromagnetic starter to control, to improve the safety of electrical equipment under mine work.Vacuum electromagnetic starter needs to use compression nut as fastener, but, the compression nut of vacuum electromagnetic starter in prior art is fastened by the way of thread connection, it is often caused by the long-term vibration of vacuum electromagnetic starter when using and the compression nut deflection produces loosening, influence its compression effect, to this, we propose a kind of compression nut of vacuum electromagnetic starter to solve the problems raised above. SUMMARY

[0003] The utility model is to provide a kind of compression nut of vacuum electromagnetic starter, to solve the problems raised in the above background.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of compression nut of vacuum electromagnetic starter, comprising:

[0005] First nut, the first nut is fixedly welded with connecting barrel, the connecting barrel is fixedly welded with second nut at the end away from the first nut, the second nut is fixedly welded with connecting seat at the end away from the connecting barrel, the connecting seat is fixedly bonded with knob seat, the center of the knob seat is provided with through slot, the through slot is communicated with the screw hole of connecting seat and second nut, the through slot is provided with limiting rod, the limiting rod is fixedly welded with two limiting blocks at the end close to the second nut, the limiting rod is fixedly welded with positioning seat, the positioning seat is slidably connected in the through slot, the front side of the knob seat is provided with annular plate, the annular plate is fixedly bonded with three annular equidistant distribution connecting rods, the connecting rod is fixedly bonded on the knob seat at the end away from the annular plate, the limiting rod is slidably connected in the annular plate, the limiting rod is provided with elastic spring.

[0006] Preferably, the end of the limiting rod is fixedly welded with plug-in block, the annular plate is provided with plug-in slot matched with plug-in block.

[0007] Preferably, the front end of the limiting rod is fixedly welded with L-shaped pull rod.

[0008] Preferably, the first nut and the second nut are threadedly connected with stud, the stud is provided with insertion slot matched with limiting rod on the side wall at the end close to connecting seat, the insertion slot inner wall is provided with two limiting grooves matched with limiting block.

[0009] Compared with the prior art, the utility model has the advantages of:

[0010] The utility model discloses when using, realize fastening effect through the compression nut screw thread connection on the screw post of allocation, when the compression nut compression, can pass through L type pull rod drive limit rod rotation, when the plug -in block is aligned with the plug -in groove, loosen L type pull rod, make limit rod drive plug -in block and insert into the plug -in groove under the elastic force of elastic spring, to be convenient for the limit rod limit fixed, limit rod can insert into the plug -in groove of screw post and drive two limit blocks to insert into the limit slot, make compression nut and screw post limit fixed, thereby avoid the problem that the compression nut is deflected and produces slack because of the long -term vibration of vacuum electromagnetic starter, influence its compression effect. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 A vacuum electromagnetic starter compression nut three -dimensional structure schematic diagram is provided for the utility model;

[0012] Figure 2 A vacuum electromagnetic starter compression nut three -dimensional structure schematic diagram is provided for the utility model;

[0013] Figure 3 A vacuum electromagnetic starter compression nut three -dimensional structure schematic diagram is provided for the utility model; Figure 1 The enlarged structure diagram of A in middle;

[0014] Figure 4 A vacuum electromagnetic starter compression nut three -dimensional structure schematic diagram is provided for the utility model;

[0015] In the drawing: 1, first nut;2, connecting barrel;3, second nut;4, connecting seat;5, knob seat;6, through slot;7, limit rod;8, limit block;9, positioning seat;10, annular plate;11, connecting rod;12, elastic spring;13, plug -in block;14, plug -in groove;15, L type pull rod;16, screw post;17, plug -in groove;18, limit slot. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0017] Please refer to Figures 1-4 The utility model provides a technical scheme: a vacuum electromagnetic starter compression nut, comprising:

[0018] A first nut 1 is attached to a connecting cylinder 2. A second nut 3 is attached to the end of the connecting cylinder 2 away from the first nut 1. A connecting seat 4 is attached to the end of the second nut 3 away from the connecting cylinder 2. A knob seat 5 is attached to the connecting seat 4. A through groove 6 is provided at the center of the knob seat 5. The through groove 6 passes through the connecting seat 4 and communicates with the screw hole of the second nut 3. A limit rod 7 is provided in the through groove 6. Two limit blocks 8 are attached to the end of the limit rod 7 near the second nut 3. A positioning seat 9 is attached to the limit rod 7 and is slidably connected in the through groove 6. An annular plate 10 is provided on the front side of the knob seat 5. Three annularly distributed connecting rods 11 are attached to the annular plate 10. The end of the connecting rod 11 away from the annular plate 10 is attached to the knob seat 5. The limit rod 7 is slidably connected in the annular plate 10. A spring spring 12 is sleeved on the limit rod 7.

[0019] A plug-in block 13 is fixedly welded to the end of the limiting rod 7. The annular plate 10 has a plug-in groove 14 that matches the plug-in block 13. When the limiting rod 7 rotates, it can drive the plug-in block 13 to rotate. When the plug-in block 13 is aligned with the plug-in groove 14, the limiting rod 7 can drive the plug-in block 13 to be inserted into the plug-in groove 14 under the elastic force of the elastic spring 12, thereby facilitating the limiting rod 7 to be limited and fixed.

[0020] An L-shaped pull rod 15 is fixedly welded to the front end of the limiting rod 7, and the L-shaped pull rod 15 facilitates pulling the limiting rod 7 outward.

[0021] The first nut 1 and the second nut 3 are threadedly connected with studs 16. The stud 16 has a slot 17 on the side wall near the connecting seat 4 that is adapted to the limiting rod 7. The inner wall of the slot 17 has two limiting grooves 18 that are adapted to the limiting blocks 8. The limiting rod 7 can be inserted into the slot 17 of the stud 16 and drive the two limiting blocks 8 to be inserted into the limiting grooves 18, thereby limiting and fixing the clamping nut and the stud 16.

[0022] Working principle: the utility model discloses in use, through the compression nut screw thread connection in the screw post 16 of allocation realizes fastening effect, when compression nut compression, can through L type pull rod 15 drive limit rod 7 rotation, when the plug -in block 13 is aligned with the plug -in groove 14, loosen L type pull rod 15, make limit rod 7 drive plug -in block 13 and insert into the plug -in groove 14 under the elastic force of elastic spring 12, to be convenient for the limit rod 7 limit fixed, limit rod 7 can insert into the slot 17 of screw post 16 to drive two limit block 8 and insert into the limit slot 18, make compression nut and screw post 16 limit fixed, thereby avoid the compression nut because vacuum electromagnetic starter's long -term vibration causes the compression nut deflection and produces the problem such as loosening, influence its compression effect.

[0023] It should be noted that in this document, the terms "first" and "second" and the like are used merely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Also, the terms "comprises", "comprising", or any other variation thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0024] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A compression nut for a vacuum electromagnetic starter, characterized by, The utility model relates to a nut (1) is fixedly welded with the connecting cylinder (2), the connecting cylinder (2) is fixedly welded with the second nut (3) away from the one end of nut (1), the second nut (3) is fixedly welded with the connecting seat (4) away from the one end of connecting cylinder (2), the connecting seat (4) is fixedly bonded with knob seat (5), the centre of knob seat (5) is equipped with through slot (6), through slot (6) penetrates the screw hole communication of connecting seat (4) with second nut (3), the through slot (6) is provided with the stop rod (7), the stop rod (7) is fixedly welded with two limit blocks (8) away from the one end of second nut (3), the stop rod (7) is fixedly welded with the locating seat (9), the locating seat (9) is connected in through slot (6) slidingly, the front side of knob seat (5) is provided with annular plate (10), the annular plate (10) is fixedly bonded with three annular equidistance distribution connecting rod (11), the connecting rod (11) is fixedly bonded in knob seat (5) away from the one end of annular plate (10), the stop rod (7) is connected in annular plate (10) slidingly, the stop rod (7) is equipped with elastic spring (12) on the sleeve. The end of stop rod (7) is fixedly welded with the plug-in block (13), the annular plate (10) is equipped with the plug-in groove (14) of adapting with plug-in block (13) on.

2. A compression nut for a vacuum electromagnetic starter according to claim 1, characterized in that: The front end of stop rod (7) is fixedly welded with L type pull rod (15).

3. The compression nut for a vacuum electromagnetic starter according to claim 1, characterized in that: The screw column (16) is connected in the first nut (1) and second nut (3) threadedly, the screw column (16) is equipped with the insertion slot (17) of adapting with stop rod (7) on the one end side wall of connecting seat (4) side wall, the insertion slot (17) inner wall is equipped with two limit slots (18) of adapting with limit block (8).

4. The compression nut for a vacuum electromagnetic starter according to claim 1, characterized in that: ​

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