Double-contact quick-acting switch

Abstract

The utility model discloses a double-contact point quick-acting switch, which comprises a plurality of quick-acting switches, one side of each quick-acting switch is provided with an installation sliding block, the other side of each quick-acting switch is provided with an installation groove, each installation groove comprises a sliding-in groove and a fixing groove, the fixing groove is arranged below the sliding-in groove, and the sliding-in groove is provided with a sliding groove. The installation sliding block slides into the sliding-in groove and is fixedly inserted into the fixing groove. The quick-acting switch has the advantages that when the point switch works, the adjacent quick-acting switches cannot shake under the condition that the nuts for fixing the multiple quick-acting switches are loosened, and the point switch can work normally.

Description

Technical Field

[0001] The present application relates to the technical field of switch machines, and in particular to a double-contact quick-acting switch. Background Art

[0002] The switch machine is a switching and locking device for turnouts. The switch machine is linked to the driving mechanism inside the contact assembly through a sliding locking block, and the driving mechanism then drives the contact type contact switch to turn on or off.

[0003] The contact assembly includes multiple snap-action switches. When installing multiple snap-action switches, the multiple switches are arranged, then inserted through a long axis, and finally fixed with two nuts. However, after long-term use of the switch machine, the two nuts will become loose, causing the multiple snap-action switches in the contact assembly to jitter, making the switch machine unable to operate normally. Utility Model Content

[0004] The utility model aims to provide a double-contact quick-acting switch in view of the defects and shortcomings of the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] It comprises a plurality of snap-action switches, one side of the snap-action switch is provided with a mounting slide block, the other side of the snap-action switch is provided with a mounting groove, the mounting groove comprises a sliding groove and a fixing groove, the fixing groove is provided below the sliding groove, the mounting slide block slides into the sliding groove and is plugged and fixed in the fixing groove.

[0007] Preferably, a movable groove is provided on the lower end surface of the mounting slide block, the movable groove is in an inclined state, a locking rod is inserted and slidably inserted in the movable groove, and the quick-acting switch is provided with a locking groove at the bottom of the fixed groove, a part of the locking rod is inserted into the locking groove, and the other part is located in the movable groove.

[0008] Preferably, a tension spring is provided at one end of the mounting slider close to the snap-action switch, a placement groove for placing the tension spring is opened on one side of the snap-action switch, one end of the tension spring is fixed to one end of the mounting slider, and the other end is fixed to the bottom of the placement groove.

[0009] Preferably, the snap-action switch comprises a plastic shell, which is composed of two half shells, a fixing piece is arranged between the two half shells, and the fixing piece connects and fixes the two half shells.

[0010] Preferably, the fixing member comprises a fixing bolt and a nut, one end of the fixing bolt passes through the side walls of the two half shells in sequence, and the nut is threadedly sleeved on the circumference of one end of the fixing bolt.

[0011] Preferably, the locking rod is provided with a guiding inclined surface in the circumferential direction on the circumferential side close to one end of the locking groove.

[0012] Preferably, the inner side wall of the half shell is provided with plug-in columns, and the interior of the other half shell is staggered with plug-in grooves for the plug-in columns to be plugged and fixed.

[0013] In summary, the present application includes at least one of the following beneficial technical effects:

[0014] 1. When installing multiple snap-action switches, slide the installation slider of the snap-action switch into the slide-in groove, and then install and fix it in the fixing groove, so that two adjacent snap-action switches are connected and fixed, then slide the installation slider on another snap-action switch into the slide-in groove of the previous snap-action switch and install and fix it in the fixing groove, repeat the above process, so that multiple snap-action switches are connected and fixed, and then install multiple snap-action switches in the contact group. When the switch machine is working, if the nuts fixing the multiple snap-action switches are loosened, the adjacent snap-action switches will not shake, so that the switch machine can work normally;

[0015] 2. After the installation slider slides into the fixed groove, the locking rod slides out of the movable groove under the action of gravity, and then slides into the locking groove. Since the movable groove is in an inclined state, the locking rod is inserted into the locking groove at an angle, and then the installation slider will not be pulled out of the fixed groove, thereby improving the stability between two adjacent snap-action switches;

[0016] 3. When the mounting slider needs to be disassembled, the mounting slider is pulled, and then one end of the mounting slider is separated from one end of the tension spring, so that the mounting slider is removed from the snap-action switch, which improves the convenience of replacing the mounting slider. At the same time, the mounting slider can be stably fixed on one side of the snap-action switch under the pulling of the tension spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model quick-acting switch;

[0018] Figure 2 It is an exploded schematic diagram of the quick-acting switch of the utility model;

[0019] Figure 3 It is a cross-sectional schematic diagram of the plastic shell of the utility model;

[0020] Figure 4 yes Figure 3 Enlarged view of point A in the middle.

[0021] In the figure: 1. snap-action switch; 2. plastic housing; 3. pull fork; 4. moving contact seat; 5. conversion spring; 6. moving contact; 7. half shell; 8. fixing piece; 9. fixing bolt; 10. nut; 11. plug-in column; 12. plug-in slot; 13. mounting slide; 14. mounting slot; 15. sliding slot; 16. fixing slot; 17. moving slot; 18. locking rod; 19. locking slot; 20. placement slot; 21. mounting seat; 22. tension spring; 23. guide slope. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings.

[0023] The embodiment of the present application discloses a double-contact quick-acting switch.

[0024] Reference Figure 1 and Figure 2 , including a snap-action switch 1, which includes a plastic shell 2, a fork 3, a moving contact seat 4, a conversion spring 5 and a moving contact 6. One end of the fork 3 is rotatably connected to the upper end of the moving contact seat 4, one end of the conversion spring 5 is hooked and fixed in the fork 3, and the other end is hooked and fixed in the moving contact seat 4. The moving contact 6 is sleeved and rotatably connected to the upper end of the fork 3, and the moving contact seat 4 is rotatably connected in the plastic shell 2.

[0025] The plastic housing 2 is composed of two half-shells 7, which are vertically symmetrical. The side walls of the two half-shells 7 are evenly provided with four connection holes. A fixing member 8 is placed in the two corresponding connection holes. The fixing member 8 includes a fixing bolt 9 and a nut 10. One end of the fixing bolt 9 passes through the two corresponding connection holes in sequence, and the nut 10 is threadedly connected to the peripheral side of one end of the fixing bolt 9. Under the interaction of the fixing bolt 9 and the nut 10, the two half-shells 7 can be formed into the plastic housing 2, which improves the convenience of installing the shift fork 3, the moving contact seat 4, the conversion tension spring 22 and the moving contact 6 in the plastic housing 2.

[0026] The inner side wall of the half shell 7 is uniformly and integrally provided with two plugging posts 11, and the inner side wall of the other half shell 7 is provided with two plugging slots 12, and one end of the plugging post 11 is plugged and fixed in the plugging slot 12. When assembling the plastic shell 2, the two plugging posts 11 on one side of the half shell 7 are inserted into the two plugging slots 12 of the corresponding half shell 7, thereby pre-assembling the plastic shell 2 and improving the convenience of assembling the plastic shell 2.

[0027] Reference Figure 3 and Figure 4, a mounting slider 13 is placed on the outside of the half shell 7, and the cross section of the mounting slider 13 is an isosceles trapezoid. A mounting groove 14 is opened on the outside of the other half shell 7, and the mounting groove 14 includes a sliding groove 15 and a fixing groove 16. The sliding groove 15 is located above the fixing groove 16, and the sliding groove 15 allows the mounting slider 13 to slide in, and the fixing groove 16 allows the mounting slider 13 to slide vertically in and be fixed. The mounting slider 13 of the plastic housing 2 slides into the sliding groove 15, and then is installed and fixed in the fixing groove 16, so that the two adjacent plastic housings 2 are connected and fixed, and then the mounting slider 13 on another plastic housing 2 slides into the sliding groove 15 of the previous plastic housing 2 and is installed and fixed in the fixing groove 16, and the above process is repeated, so that multiple snap-action switches 1 are connected and fixed.

[0028] The lower end surface of the installation slide block 13 is provided with a moving groove 17, which is inclined, and a locking rod 18 is inserted and slidably inserted in the moving groove 17. The half shell 7 is provided with a locking groove 19 at the bottom of the fixed groove 16, and a part of the locking rod 18 is inserted into the locking groove 19, and the other part is located in the moving groove 17. When installing two adjacent snap switches 1, the two snap switches 1 are placed upside down, and then the installation slide block 13 is installed in the fixed groove 16 by sliding into the groove 15. The above installation process is repeated to assemble multiple snap switches 1, and then the assembled multiple snap switches 1 are turned over, so that under the action of gravity, one end of the locking rod 18 is inserted into the locking groove 19. Since the locking rod 18 is in an inclined state, the installation slide block 13 is not easy to slide out of the fixed groove 16.

[0029] The half shell 7 is provided with a placement groove 20 on one side close to the mounting slider 13, and a mounting seat 21 is integrally provided on one side of the mounting slider 13. One end of the mounting seat 21 is inserted into the opening of the placement groove 20, and a tension spring 22 is placed between the mounting seat 21 and the bottom of the placement groove 20. One end of the tension spring 22 is hooked in the mounting seat 21, and the other end is hooked at the bottom of the placement groove 20. The mounting slider 13 is pulled, and then one end of the mounting slider 13 is separated from one end of the tension spring 22, so that the mounting slider 13 is removed from the snap-action switch 1, which improves the convenience of replacing the mounting slider 13. At the same time, the mounting slider 13 can be stably fixed to one side of the snap-action switch 1 under the pulling of the tension spring 22.

[0030] The locking rod 18 is provided with a guide slope 23 in the circumferential direction near one end of the locking groove 19. Under the effect of the guide slope 23, one end of the locking rod 18 is conveniently inserted from the opening of the locking groove 19.

[0031] The above description is only a preferred embodiment of the present utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A double-contact snap-action switch, comprising a plurality of snap-action switches (1), characterized in that: A mounting slide block (13) is provided on one side of the snap-action switch (1), and a mounting groove (14) is provided on the other side of the snap-action switch (1). The mounting groove (14) comprises a sliding groove (15) and a fixing groove (16). The fixing groove (16) is provided below the sliding groove (15). The mounting slide block (13) slides into the sliding groove (15) and is inserted and fixed in the fixing groove (16).

2. A double-contact quick-acting switch according to claim 1, characterized in that: A movable groove (17) is provided on the lower end surface of the mounting slide block (13), the movable groove (17) is in an inclined state, a locking rod (18) is inserted and slidably inserted into the movable groove (17), and the snap-action switch (1) is provided with a locking groove (19) at the bottom of the fixed groove (16), a part of the locking rod (18) is inserted into the locking groove (19), and the other part is located in the movable groove (17).

3. A double-contact quick-acting switch according to claim 1, characterized in that: The mounting slide block (13) is provided with a tension spring (22) at one end close to the snap-action switch (1), and a placement groove (20) for placing the tension spring (22) is provided on one side of the snap-action switch (1), one end of the tension spring (22) is fixed to one end of the mounting slide block (13), and the other end is fixed to the bottom of the placement groove (20).

4. A double-contact quick-acting switch according to claim 1, characterized in that: The snap-action switch (1) comprises a plastic housing (2), wherein the plastic housing (2) is composed of two half shells (7), a fixing member (8) is provided between the two half shells (7), and the fixing member (8) connects and fixes the two half shells (7).

5. A double-contact quick-acting switch according to claim 4, characterized in that: The fixing member (8) comprises a fixing bolt (9) and a nut (10), one end of the fixing bolt (9) passes through the side walls of the two half shells (7) in sequence, and the nut (10) is threadedly sleeved on the circumference of one end of the fixing bolt (9).

6. A double-contact quick-acting switch according to claim 2, characterized in that: The locking rod (18) is provided with a guiding inclined surface (23) in the circumferential direction on the circumferential side close to one end of the locking groove (19).

7. A double-contact quick-acting switch according to claim 4, characterized in that: The inner side wall of the half shell (7) is provided with a plug-in column (11), and the interior of the other half shell (7) is provided with plug-in grooves (12) for the plug-in column (11) to be plugged and fixed.

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