External safety hand brake of distribution box

Abstract

The utility model discloses an external safety hand brake for a distribution box, which comprises a connecting seat, an overturning arm and a connecting arm, the overturning arm and the connecting arm are arranged on two sides of the connecting seat, and a connecting shaft penetrates through the inside of the connecting seat. One end of the sleeve is connected with the end of an external hand brake, the rotating rod is manually rotated to drive the protruding block to synchronously rotate, the protruding block abuts against the locking rod in the rotating process, then the locking rod can be turned over towards one side, the reset spring is stressed and compressed, then the hand brake rod is broken off, the connecting base is driven to turn over, the connecting shaft synchronously rotates, and the locking rod is locked. And then the rotating shaft and the fluted disc are rotated until the hand brake bar and the extension brake bar are overturned from the position between the overturning arm and the connecting arm, then the rotating rod is stopped from rotating, the reset spring is reset, the locking rod can be pushed to clamp the teeth on the outer side of the fluted disc, the fluted disc, the rotating shaft and the connecting shaft are stopped from rotating, and the position of the hand brake bar can be locked.

Description

Technical Field

[0001] The utility model relates to the technical field of distribution boxes, in particular to an external safety hand brake of a distribution box. Background Art

[0002] In the power system, the distribution box is a key device for power distribution and control, and its safety and reliability are of vital importance. In order to ensure that the distribution box can effectively prevent electrical accidents during operation, the external safety hand brake technology came into being. This technology installs a manually operable safety hand brake on the outside of the distribution box to achieve emergency cutting of the power supply in the distribution box. When an electrical fault occurs or an emergency power outage is required, the operator can quickly pull the safety hand brake to cut off the power supply, thereby avoiding electrical accidents from causing harm to personnel and equipment. The external safety hand brake has the advantages of simple operation, quick response, safety and reliability, and has become an indispensable safety protection measure in the power system;

[0003] In a high-voltage distribution box external safety hand brake with announcement number CN214044535U, it relates to the technical field of high-voltage distribution boxes, including a distribution box, a hand brake is arranged inside the distribution box, and a threaded hole is arranged at the bottom end inside the hand brake, a prompter is installed on one side of the distribution box, an extension rod is arranged at one end of the threaded hole, and a sleeve is sleeved on the outside of the extension rod, and an insulating sheath is wrapped on the outside of the sleeve, and a spring is fixed on the inner wall of the extension rod. The utility model uses an extension rod connected to the hand brake to drive the extension rod to close downward after the hand brake trips, so that the extension rod is detected by the microwave induction on the prompter, and a loudspeaker broadcasts a prompt, and a high-brightness light prompt is used to improve safety, and the threaded hole and the external thread make the extension rod easy to use and disassemble, and the card block corresponds to the card hole at different positions to adjust the length of the extension rod, and the PET fluorescent film is used to view the circuit corresponding to the corresponding hand brake, which is convenient to operate;

[0004] When the above-mentioned prior art is in use, a corresponding extension rod is set on the hand brake, but the overall length is short and the adjustable space is limited, which leads to inconvenience in actual operation. In addition, due to the short length, it takes more effort when using it, which reduces the practicality. Therefore, corresponding improvements are needed. Utility Model Content

[0005] The utility model aims to provide an external safety hand brake for a distribution box, so as to solve the problem that the existing external safety hand brake for a distribution box proposed in the above background technology is complicated to operate and inconvenient to fold and use.

[0006] To achieve the above object, the utility model provides the following technical solution: an external safety hand brake of a distribution box, comprising a connecting seat, a flip arm, and a connecting arm, wherein the flip arm and the connecting arm are arranged on both sides of the connecting seat, a connecting shaft runs through the interior of the connecting seat, and both ends of the connecting shaft are respectively connected to one side of the flip arm and the connecting arm;

[0007] Also includes:

[0008] One side of the flip arm is connected to a protective shell, and a self-locking mechanism is provided inside the protective shell;

[0009] A hand brake lever is connected to one side of the connecting seat, and an extension lever is connected inside the hand brake lever, and one end of the extension lever is connected to a sleeve.

[0010] When a distribution box external safety hand brake is used using the technical solution, the extended gate rod can be freely flipped during use, so that it is easy to fold and store, and with the setting of the self-locking mechanism, the folding self-locking can be achieved, which is convenient to use. With the use of the extended gate rod and the hand brake rod, the use length of the extended gate rod can be extended, achieving a labor-saving effect.

[0011] Preferably, the connecting seat is rotationally connected with the flip arm and the connecting arm via a connecting shaft, and the hand brake lever is flipped between the flip arm and the connecting arm via the connecting seat and the connecting shaft.

[0012] Preferably, the extension gate rod is evenly provided with adjustment holes, the hand brake rod is provided with a locking hole, a fixing pin is connected to one side of the hand brake rod, and one end of the fixing pin passes through the locking hole and extends to the inside of the adjustment hole.

[0013] Preferably, the diameters of the adjustment hole and the locking hole are equal, and a plurality of groups of adjustment holes are provided on the extension gate rod, and the spacings between adjacent adjustment holes are equal.

[0014] Preferably, the self-locking mechanism includes an inner shell body, and the inner shell body is arranged inside the protective shell, a rotating rod is connected to one side of the inner shell body, and one end of the rotating rod extends to the outside of the protective shell, a protrusion is sleeved on the outer side of the rotating rod, a locking rod is connected to the inside of the rotating rod on one side of the protrusion, and a reset spring is evenly connected to one side of the locking rod, and one end of the reset spring is connected to one side of the inner shell body.

[0015] Preferably, a gear disc is connected to the interior of the inner shell on one side of the locking rod, and a rotating shaft passes through the interior of the gear disc, and one end of the rotating shaft passes through the inner shell and the flip arm and is connected to one end of the connecting shaft.

[0016] Preferably, one end of the locking rod is rotatably connected to the inner housing via a support shaft, and one end of the locking rod is engaged with teeth on the outer side of the gear disk.

[0017] Compared with the prior art, the utility model has the following beneficial effects: the external safety hand brake of the distribution box can not only be folded for use, but also can be self-locked, thereby improving the stability of use, and the hand brake lever can be freely extended and retracted to achieve the effect of adjusting the use length, thereby expanding the overall adjustment range, making the actual operation convenient and having a good labor-saving effect;

[0018] The locking rod is then pushed back to engage the teeth on the outer side of the toothed disc, and the toothed disc, when in use, the locking rod is engaged with the locking rod, and the locking rod is engaged with the locking rod.

[0019] By pulling the extended gate rod to make it move in the hand brake rod and making the adjustment hole correspond to the locking hole position, and then screwing the fixing pin and passing it through the locking hole until it enters the adjustment hole, the extended gate rod can be locked in position, and then the use length of the extended gate rod can be further extended, achieving a labor-saving effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0022] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0023] Figure 3 It is a side view structural schematic diagram of the utility model;

[0024] Figure 4 For the utility model Figure 2 Schematic diagram of the structure at A in the middle;

[0025] Figure 5 It is a three-dimensional structural schematic diagram of the utility model.

[0026] Explanation of the reference numerals in the figure: 1. Connecting seat; 2. Flip arm; 3. Connecting arm; 4. Hand brake lever; 401. Locking hole; 5. Extension lever; 501. Adjustment hole; 6. Sleeve; 7. Protective shell; 8. Self-locking mechanism; 801. Rotating rod; 802. Inner shell; 803. Bump; 804. Locking rod; 805. Reset spring; 806. Toothed disc; 807. Rotating shaft; 9. Fixing pin; 10. Connecting shaft. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of 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.

[0028] See also Figure 1-Figure 5 , the utility model provides the following technical solutions:

[0029] Embodiment 1

[0030] In order to solve the problem that the existing external hand brake of the distribution box in the prior art is cumbersome to operate and inconvenient to use, the following technical solution is published. For details, please refer to Figure 1 Figure 2 , Figure 3 , Figure 4 , Figure 5, including a connecting seat 1, a flip arm 2, and a connecting arm 3, the flip arm 2 and the connecting arm 3 are arranged on both sides of the connecting seat 1, the connecting seat 1 is rotatably connected with the flip arm 2 and the connecting arm 3 through a connecting shaft 10, the hand brake lever 4 flips between the flip arm 2 and the connecting arm 3 through the connecting seat 1 and the connecting shaft 10, the connecting seat 1 is penetrated by the connecting shaft 10, and the two ends of the connecting shaft 10 are respectively connected to one side of the flip arm 2 and the connecting arm 3; also includes: a protective shell 7 is connected to one side of the flip arm 2, and a self-locking mechanism 8 is arranged inside the protective shell 7, the self-locking mechanism 8 includes an inner shell 802, and the inner shell 802 is arranged inside the protective shell 7, a rotating rod 801 is connected to one side of the inner shell 802, and the rotating rod 801 One end of the rotating rod 801 extends to the outside of the protective shell 7, a protrusion 803 is sleeved on the outside of the rotating rod 801, a locking rod 804 is connected to the inside of the rotating rod 801 on one side of the protrusion 803, and a reset spring 805 is evenly connected to one side of the locking rod 804, one end of the reset spring 805 is connected to one side of the inner shell 802, a toothed disc 806 is connected to the inside of the inner shell 802 on one side of the locking rod 804, and a rotating shaft 807 is passed through the inside of the toothed disc 806, one end of the rotating shaft 807 passes through the inner shell 802 and the flip arm 2 and is connected to one end of the connecting shaft 10, one end of the locking rod 804 is rotatably connected to the inner shell 802 through the supporting shaft, and one end of the locking rod 804 is mutually engaged with the teeth on the outside of the toothed disc 806;

[0031] When the present embodiment is in use, the extension gate rod 5 is bent to make the connecting seat 1 and the connecting shaft 10 flip between the flip arm 2 and the connecting arm 3, so that the hand brake gate rod 4 can be flipped out from between the flip arm 2 and the connecting arm 3, so that the overall hand brake length is extended to the length of the extension gate rod 5, the flip arm 2 or the connecting arm 3, so as to adjust the overall length of the safety hand brake, so as to improve the convenience and safety of use. In addition, during the flipping of the extension gate rod 5, the synchronous rotation of the connecting shaft 10 can make the rotating shaft 807 and the toothed disc 806 rotate synchronously. After the position of the extension gate rod 5 is adjusted, the rotation of the rotating rod 801 is stopped. Under the elastic reset action of the reset spring 805, the locking rod 804 can be pushed, and the locking rod 804 is used to be stuck on the outer side teeth of the toothed disc 806, so as to lock the position of the toothed disc 806, the rotating shaft 807, the connecting shaft 10 and the extension gate rod 5, so as to improve the stability of the use of the extension gate rod 5, so as to ensure the stable use of the safety hand brake. When it is not used later, the extension gate rod 5 can be folded, which is convenient to operate.

[0032] Embodiment 2

[0033] This embodiment is different from the first embodiment. The extension gate rod 5 can be freely extended and retracted in the hand brake gate rod 4 to achieve the effect of adjusting the use length of the extension gate rod 5. The locking of the fixing pin 9 is used to improve the stability of the extension gate rod 5 and achieve the effect of labor saving when using the safety hand brake. Therefore, the following technical solutions are published. Please refer to Figure 1 , Figure 2 , a hand brake lever 4 is connected to one side of the connecting seat 1, and an extension lever 5 is connected to the inside of the hand brake lever 4, one end of the extension lever 5 is connected to a sleeve 6, and adjustment holes 501 are evenly arranged on the extension lever 5, and a locking hole 401 is arranged on the hand brake lever 4, and a fixing pin 9 is connected to one side of the hand brake lever 4, and one end of the fixing pin 9 passes through the locking hole 401 and extends to the inside of the adjustment hole 501, the adjustment hole 501 and the locking hole 401 are equal in diameter, and a plurality of groups of adjustment holes 501 are arranged on the extension lever 5, and the spacing between adjacent adjustment holes 501 is equal;

[0034] When this embodiment is in use, the extension gate rod 5 is pulled to extend it in the hand brake rod 4, so as to extend the use length of the extension gate rod 5, thereby saving effort when using the safety hand brake, and by providing multiple groups of adjustment holes 501 on the extension gate rod 5, the adjustment range can be expanded, and then the fixing pin 9 is used to be screwed from the locking hole 401 to the adjustment hole 501, so as to lock the position of the extension gate rod 5 to ensure its stability in use.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Those of ordinary skill in the art may understand and implement it without creative effort.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A distribution box external safety hand brake, comprising a connection seat (1), a flip arm (2), and a connection arm (3), wherein the flip arm (2) and the connection arm (3) are arranged on both sides of the connection seat (1), a connection shaft (10) passes through the interior of the connection seat (1), and two ends of the connection shaft (10) are respectively connected to one side of the flip arm (2) and the connection arm (3); It is characterized in that Also includes: One side of the flip arm (2) is connected to a protective shell (7), and a self-locking mechanism (8) is provided inside the protective shell (7); A hand brake lever (4) is connected to one side of the connection seat (1), and an extension lever (5) is connected inside the hand brake lever (4), and one end of the extension lever (5) is connected to a sleeve (6).

2. According to claim 1, a distribution box external safety hand brake is characterized in that: The connecting seat (1) is rotatably connected with the flip arm (2) and the connecting arm (3) via a connecting shaft (10); the hand brake lever (4) flips between the flip arm (2) and the connecting arm (3) via the connecting seat (1) and the connecting shaft (10).

3. The external safety hand brake of a distribution box according to claim 1, characterized in that: The extension gate rod (5) is evenly provided with adjustment holes (501), the hand brake gate rod (4) is provided with a locking hole (401), one side of the hand brake gate rod (4) is connected to a fixing pin (9), and one end of the fixing pin (9) passes through the locking hole (401) and extends to the inside of the adjustment hole (501).

4. The external safety hand brake of a distribution box according to claim 3 is characterized by: The diameters of the adjustment holes (501) and the locking holes (401) are equal, and a plurality of groups of the adjustment holes (501) are arranged on the extension gate rod (5), with the spacing between adjacent adjustment holes (501) being equal.

5. The external safety hand brake of a distribution box according to claim 1, characterized in that: The self-locking mechanism (8) comprises an inner shell (802), and the inner shell (802) is arranged inside the protective shell (7); one side inside the inner shell (802) is connected to a rotating rod (801), and one end of the rotating rod (801) extends to the outside of the protective shell (7); a protrusion (803) is sleeved on the outside of the rotating rod (801); the inside of the rotating rod (801) on one side of the protrusion (803) is connected to a locking rod (804), and one side of the locking rod (804) is evenly connected to a reset spring (805), and one end of the reset spring (805) is connected to one side of the inner shell (802).

6. The external safety hand brake of a distribution box according to claim 5, characterized in that: A toothed disc (806) is connected to the interior of the inner shell (802) on one side of the locking rod (804), and a rotating shaft (807) passes through the interior of the toothed disc (806), and one end of the rotating shaft (807) passes through the inner shell (802) and the flip arm (2) and is connected to one end of the connecting shaft (10).

7. The external safety hand brake of a distribution box according to claim 5, characterized in that: One end of the locking rod (804) is rotatably connected to the inner housing (802) via a support shaft, and one end of the locking rod (804) is engaged with teeth on the outer side of the toothed disc (806).

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