A wire connection structure and a mining flameproof LED lighting lamp

Abstract

The present invention provides a wire connection structure and a mine explosion-proof LED lighting lamp. Among them, the wire connection structure includes a fixed barrel base and a connecting member. An installation hole is provided on the fixed barrel base, and the connecting member is inserted into the installation hole. The connecting member is provided with a front portion, a main body portion, and a rear portion. A wire groove is provided on the main body portion, and a power supply wire is wound in the wire groove. The installation hole of the fixed barrel base is provided with a locking section and a sealing section. The locking section cooperates with the front portion, and the sealing section cooperates with the main body portion. The outer edge of the power supply wire is pressed against the inner wall of the sealing section. The mine explosion-proof LED lighting lamp, in addition to including the above-mentioned mine explosion-proof LED lighting lamp, further includes a housing, a power module, a light source module, and a lamp tail module. The power module is housed in the housing, and the light source module connects the housing and the lamp tail module. The wire connection structure and the mine explosion-proof LED lighting lamp of the present invention can simultaneously achieve the functions of anti-pulling and explosion-proof.

Description

Technical Field

[0001] The present invention relates to the technical field of wiring structures, and particularly to a wire connection structure and a mining flameproof LED lighting lamp. Background Art

[0002] An electrical device is connected to an external power supply through a wire, and a wire connection structure is usually provided between the electrical device and its wire. The traditional wire connection structure has the functions of fixing the wire and preventing excessive bending and wear at the connection of the wire.

[0003] With the progress of the times, the existing wire connection structure also has the function of preventing pulling. Among them, an existing wire connection structure 10 is as shown in Figure 1 and Figure 2 . The wire connection structure 10 includes: a threaded barrel seat 11 fixed on the device housing, a detachable connecting member 12, and a clamping block 13 cooperating with the connecting member 12; in use, first pass the wire through the connecting member 12, then insert the connecting member 12 and the wire into the threaded barrel seat 11, the connecting member 12 is in threaded cooperation with the threaded barrel seat 11, and then tighten the clamping block 13 to the connecting member 12 through a bolt 14 (as shown in Figure 3 ), so that the clamping block 13 presses on the wire. In this way, under the clamping action of the clamping block 13, even if the wire is subjected to an external force, it will not be easily pulled out, realizing the function of preventing pulling and ensuring the wiring stability of the electrical device.

[0004] However, when applying the above wire connection structure 10 to a mining LED lighting lamp with high explosion-proof requirements, the following disadvantages will occur: First, the operation is cumbersome. The staff needs to use the bolt 14 to realize the cooperation between the clamping block 13 and the connecting member 12, resulting in low efficiency during installation or disassembly, and tools such as a screwdriver are required; second, the sealing performance is poor. When the clamping block 13 clamps the wire, the wire deflects to one side of the connecting member 12 (as shown in Figure 3 ), which results in a large gap between the wire and the inner wall of the connecting member 12, thus resulting in poor sealing performance and being not conducive to moisture-proof and explosion-proof; third, the stress position is concentrated, resulting in easy breakage of the wire at this place.

[0005] Therefore, how to design a wire connection structure and a mining flameproof LED lighting lamp, so that it can simplify the installation operation steps, improve the sealing performance at the connection, and at the same time realize the functions of preventing pulling and explosion-proof, which is a technical problem that needs to be solved by those skilled in the art. Summary of the Invention

[0006] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a wire connection structure and a mining flameproof LED lighting lamp, so that it can simplify the installation operation steps, improve the sealing performance at the connection, and at the same time realize the functions of preventing pulling and explosion-proof.

[0007] The object of the present invention is achieved by the following technical solutions:

[0008] A wire connection structure includes a fixed barrel seat and a connecting member. An installation hole is provided on the fixed barrel seat, and the connecting member is detachably inserted into the installation hole;

[0009] The connecting member is provided with a front portion, a main body portion, and a rear portion. A wire groove is provided on the main body portion, and a power supply wire is wound in the wire groove, and the power supply wire is wound around the wire groove of the main body portion for at least two turns; the rear portion is used to limit the power supply wire;

[0010] The installation hole of the fixed barrel seat is provided with a locking section and a sealing section. The sealing section is closer to the opening of the installation hole than the locking section; when the connecting member is inserted into the installation hole, the locking section cooperates with the front portion, the sealing section cooperates with the main body portion, and the outer edge of the power supply wire is pressed against the inner wall of the sealing section.

[0011] In one embodiment, a thread is provided on the front portion, and the locking section is in threaded cooperation with the front portion.

[0012] In one embodiment, a clamping groove is provided on the front portion, and an elastic clamping pin cooperating with the clamping groove is provided in the locking section.

[0013] In one embodiment, the diameter of the main body portion is larger than the diameter of the front portion, a stepped plane is formed between the main body portion and the front portion, and a step is formed between the locking section and the sealing section. When the connecting member is inserted into the installation hole, the stepped plane abuts against the step.

[0014] In one embodiment, a rubber sealing ring is provided on the stepped plane. When the connecting member is inserted into the installation hole, the rubber sealing ring is pressed against the step.

[0015] In one embodiment, a first avoidance groove is provided on the connecting member, and the first avoidance groove is located on the front portion and the main body portion. The first avoidance groove is used to accommodate the power supply wire.

[0016] In one embodiment, the diameter of the main body portion is larger than the diameter of the rear portion, a second avoidance groove is provided on the connecting member, and the second avoidance groove is located on the rear portion and the main body portion. The second avoidance groove is used to accommodate the power supply wire.

[0017] In one embodiment, a rotatable movable ring is provided on the rear portion. A notch is formed on the movable ring and is adapted to cooperate with the second avoidance groove. The movable ring is used to shield the second avoidance groove so as to limit the power supply wire.

[0018] A mine explosion-proof LED lighting lamp includes the above-mentioned wire connection structure;

[0019] It further includes: a housing, a power module, a light source module, and a lamp tail module. The housing is provided with a wiring cavity. The power module is received in the wiring cavity. The light source module connects the housing and the lamp tail module;

[0020] The fixed cylinder seat of the wire connection structure is provided on the housing. The power supply wire passes through the housing and is electrically connected to the power module.

[0021] In one embodiment, the light source module includes: a light-emitting lamp strip, a lamp strip seat, a transparent cylinder cover, a reflector, and a protective net. The light-emitting lamp strip is installed on the lamp strip seat. The lamp strip seat is received inside the transparent cylinder cover. Two ends of the transparent cylinder cover are respectively connected to the housing and the lamp tail module. The reflector is disposed on one side of the transparent cylinder cover. The protective net is installed on the reflector, and the protective net and the reflector cooperate to surround the transparent cylinder cover.

[0022] In summary, the wire connection structure and the mine explosion-proof LED lighting lamp of the present invention can not only simplify the installation operation steps, but also improve the sealing performance of the connection part, and at the same time realize the functions of anti-pulling and explosion-proof. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0024] Figure 1 It is a schematic structural diagram of the existing wire connection structure involved in the background art;

[0025] Figure 2 It is an exploded schematic diagram of the existing wire connection structure involved in the background art;

[0026] Figure 3 For Figure 2 It is a schematic diagram of the mating state of the existing wire connection structure shown;

[0027] Figure 4 It is a schematic structural diagram of the wire connection structure of the present invention;

[0028] Figure 5 is Figure 4 exploded view of the wire connection structure shown;

[0029] Figure 6 is Figure 5 structural diagram of the connector shown;

[0030] Figure 7 is Figure 5 schematic diagram of the mating state of the connector and the power supply wire shown;

[0031] Figure 8 is Figure 5 cross-sectional view of the connector shown;

[0032] Figure 9 is Figure 5 planar cross-sectional view of the fixed cylinder base shown;

[0033] Figure 10 is Figure 5 exploded partial view of the connector shown;

[0034] Figure 11 is the structural diagram of the connector in another embodiment;

[0035] Figure 12 is the structural diagram of the mine explosion-proof LED lighting lamp of the present invention;

[0036] Figure 13 is Figure 12 exploded view of the mine explosion-proof LED lighting lamp shown. Detailed implementation manners

[0037] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention understood more thoroughly and comprehensively.

[0038] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only embodiments.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this invention belongs. The terms used in the description of this invention herein are for the purpose of describing specific embodiments only and are not intended to limit the invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0040] The present invention provides a wire connection structure 20, aiming to balance sealing performance and operational convenience, while achieving anti-pulling and explosion-proof functions. As Figure 4 and Figure 5 shown, the wire connection structure 20 includes a fixed barrel base 100 and a connecting member 200. An installation hole 110 is formed on the fixed barrel base 100, and the connecting member 200 is detachably inserted into the installation hole 110.

[0041] Among them, as Figure 6 shown, the connecting member 200 is provided with a front portion 210, a main body portion 220, and a rear portion 230. A wire groove 221 is formed on the main body portion 220, and a power supply wire 30 is wound in the wire groove 221, and the power supply wire 30 is wound around the wire groove 221 of the main body portion 220 for at least two turns (as Figure 7 shown). The rear portion 230 is used to limit the power supply wire 30, and its specific limiting method will be described below.

[0042] As Figure 9 shown, the installation hole 110 of the fixed barrel base 100 is provided with a locking section 111 and a sealing section 112, and the sealing section 112 is closer to the opening of the installation hole 110 than the locking section 111. When the connecting member 200 is inserted into the installation hole 110, the locking section 111 cooperates with the front portion 210, and the sealing section 112 cooperates with the main body portion 220, and the outer edge of the power supply wire 30 is pressed against the inner wall of the sealing section 112.

[0043] That is to say, when the connecting member 200 is inserted and installed, the power supply wire 30 will be clamped between the main body portion 220 and the inner wall of the sealing section 112. By using this clamping method, not only can the static friction of the power supply wire 30 be increased to achieve the anti-pulling function, but also the gap between the main body portion 220 and the sealing section 112 can be filled by the power supply wire 30, so as to obtain good sealing performance and achieve the moisture-proof and explosion-proof functions.

[0044] In this embodiment, a thread 211 is formed on the front portion 210 (as Figure 6 and Figure 8 shown), and the locking section 111 is in threaded cooperation with the front portion 210 (as Figure 9As shown, during installation, by turning and rotating, the front part 210 of the connecting member 200 can be stably fitted with the locking section 111 of the fixed barrel base 100, thus achieving connection. Moreover, since the outer edge of the power supply wire 30 is pressed against the inner wall of the sealing section 112 after installation (i.e., the outer edge of the power supply wire 30 is slightly larger than the aperture of the sealing section 112), this makes it necessary to overcome a relatively large frictional force when inserting the connecting member 200 into the installation hole 110. Through the threaded engagement structure, the rotational force can be converted into an axial assisting force by means of the screw threads, thereby assisting the staff in inserting the connecting member 200 into the installation hole 110 to achieve labor-saving operation.

[0045] In this embodiment, the diameter of the main body part 220 is larger than that of the front part 210, and a stepped plane 201 is formed between the main body part 220 and the front part 210 (as Figure 8 shown), and a step 113 is formed between the locking section 111 and the sealing section 112 (as Figure 9 shown). When the connecting member 200 is inserted into the installation hole 110, the stepped plane 201 abuts against the step 113, thereby making the clearance channel between the connecting member 200 and the fixed barrel base 100 tortuous, thus increasing the difficulty for external gas to pass through the installation hole 110 to improve airtightness.

[0046] Preferably, a rubber sealing ring (not shown in the figure) is provided on the stepped plane 201. When the connecting member 200 is inserted into the installation hole 110, the rubber sealing ring is pressed against the step 113. This can further improve the sealing performance, thereby preventing water vapor and gas from passing through the installation hole 110.

[0047] Preferably, as Figure 6 and Figure 8 shown, a first avoidance groove 202 is formed on the connecting member 200. The first avoidance groove 202 is located on the front part 210 and the main body part 220, and the first avoidance groove 202 is used to accommodate the power supply wire 30. When the power supply wire 30 is accommodated and crosses the main body part 220 and enters the front part 210, the power supply wire 30 passes through the first avoidance groove 202. The first avoidance groove 202 not only provides a necessary avoidance space for wire threading but also can play a role in limiting the power supply wire 30.

[0048] Similarly, the diameter of the main body part 220 is larger than that of the rear part 230, and a second avoidance groove 203 is formed on the connecting member 200 (as Figure 6 and Figure 8 shown). The second avoidance groove 203 is located on the rear part 230 and the main body part 220, and the second avoidance groove 203 is used to accommodate the power supply wire 30. When the power supply wire 30 is accommodated and crosses the rear part 230 and enters the main body part 220, the power supply wire 30 passes through the second avoidance groove 203. The second avoidance groove 203 provides a necessary avoidance space for wire threading.

[0049] The design principle of the wire connection structure 20 of the present invention will be described below in conjunction with the above structure:

[0050] First, the staff winds the power supply wire 30 around the main body 220 of the connector 200, and the power supply wire 30 is wound around the main body 220 for at least two turns. Then, both sides of the power supply wire 30 are respectively received in the first avoidance groove 202 and the second avoidance groove 203. After winding like this, the outer edge of the power supply wire 30 wound around the main body 220 will slightly protrude from the main body 220, that is, the outer edge dimension of the power supply wire 30 is larger than the diameter of the main body 220;

[0051] During installation, the staff inserts the connector 200 into the installation hole 110 so that the front part 210 is in contact and cooperation with the locking section 111. Subsequently, the staff rotates the connector 200, and then the connector 200 can be easily and completely inserted into the installation hole 110 by means of the thread action. At this time, at the locking section 111, the front part 210 of the connector 200 is in threaded cooperation with the locking section 111, so the connector 200 is not easily detached from the installation hole 110; at the sealing section 112, the outer edge of the power supply wire 30 on the main body 220 is pressed against the inner wall of the sealing section 112.

[0052] Compared with the prior art, the design of the present invention has the following functions in multiple aspects:

[0053] First, the power supply wire 30 is clamped by the main body 220 and the fixed cylinder base 100. When it is pulled by an external force, the static friction force of the power supply wire 30 can overcome the pulling force, so as to ensure that the power supply wire 30 will not be pulled out, realizing the anti-pulling function;

[0054] Second, the outer edge of the power supply wire 30 is pressed against the inner wall of the sealing section 112, which means that the power supply wire 30 completely seals the gap between the main body 220 and the fixed cylinder base 100, and the power supply wire 30 is wound around the main body 220 for at least two turns. This means that when external water vapor and gas want to pass through the installation hole 110, they have to continuously break through the obstruction of two turns of the power supply wire 30 at least. In this way, the sealing performance of the wire connection structure 20 is greatly improved, so as to prevent external flammable and explosive gases from passing through to the installation hole 110;

[0055] Third, in the prior art, the clamping of the power supply wire 30 mainly focuses on a certain position, which leads to too concentrated stress and easily causes the power supply wire 30 to be damaged at this position. In contrast, the power supply wire 30 of the present invention is wound around the main body 220, and the area where it is clamped is larger, and the stress will not be too concentrated. This realizes the function that the power supply wire 30 is not easily damaged, thereby reducing the possibility of the power supply wire 30 leaking electricity;

[0056] Fourthly, the installation and disassembly operations are simple; only need to insert the connecting member 200 into the fixed cylinder base 100, and through simple actions, connect the front part 210 with the locking section 111, and thus the installation can be completed; similarly, only need to operate in the reverse direction to complete the disassembly operation. And during the installation and disassembly operations, the staff does not need to rely on additional tools (such as screwdrivers, etc.), thus reducing the burden and achieving convenient operation.

[0057] In one embodiment, as Figure 10 shown, a rotatable movable ring 231 is provided on the rear part 230, a notch 232 matching with the second avoidance groove 203 is formed on the movable ring 231, and the movable ring 231 is used to shield the second avoidance groove 203 to limit the power supply wire 30. Specifically, when winding the wire, rotate the movable ring 231 until the notch 232 is aligned with the second avoidance groove 203. After the power supply wire 30 is received in the second avoidance groove 203, then rotate the movable ring 231 to stagger the notch 232 from the second avoidance groove 203. At this time, the movable ring 231 blocks the notch of the second avoidance groove 203, and the power supply wire 30 cannot break away from the second avoidance groove 203.

[0058] In other embodiments, other connection methods can also be adopted between the front part 210 and the locking section 111. For example, as Figure 11 shown, a clamping groove 212 is formed on the front part 210, and an elastic clamping pin (not shown in the figure) matching with the clamping groove 212 is arranged in the locking section 111. When the connecting member 200 penetrates into the installation hole 110, the elastic clamping pin will be bent and opened; after the connecting member 200 is inserted in place, the elastic clamping pin will be clamped into the clamping groove 212 under the elastic action, so as to realize the connection and cooperation between the front part 210 and the locking section 111.

[0059] The present invention also provides a mine explosion-proof LED lighting lamp 40, which is mainly applied to the mining field with high explosion-proof requirements. This kind of mine use scenario requires the lamp to have high airtightness to prevent flammable and explosive gases from contacting with electric sparks and causing dangerous situations.

[0060] As Figure 12 and Figure 13 shown, the mine explosion-proof LED lighting lamp 40 includes the above-mentioned wire connection structure 20, and further includes: a housing 300, a power module 400, a light source module 500 and a lamp tail module 600. Among them, the housing 300 is provided with a wiring cavity 310, the power module 400 is received in the wiring cavity 310, and the light source module 500 connects the housing 300 and the lamp tail module 600. The fixed cylinder base 100 of the wire connection structure 20 is arranged on the housing 300, and the power supply wire 30 passes through the housing 300 and is electrically connected to the power module 400.

[0061] Preferably, as Figure 13As shown in the figure, the light source module 500 includes: a light-emitting lamp strip 510, a lamp strip base 520, a transparent cylinder cover 530, a reflector 540, and a protective net 550. The light-emitting lamp strip 510 is installed on the lamp strip base 520, the lamp strip base 520 is housed inside the transparent cylinder cover 530, both ends of the transparent cylinder cover 530 are respectively connected to the housing 100 and the lamp tail module 600, the reflector 540 is disposed on one side of the transparent cylinder cover 530, the protective net 550 is installed on the reflector 540, and the protective net 550 and the reflector 540 cooperate to surround the transparent cylinder cover 530.

[0062] During operation, the light-emitting lamp strip 510 is powered on to emit light. The lamp strip base 520 provides support for the light-emitting lamp strip 510. And since the light-emitting lamp strip 510 is in contact with the lamp strip base 520, the heat generated by the light-emitting lamp strip 510 will be transferred to the lamp strip base 520 and then dissipated into the air, thus achieving efficient heat dissipation. The transparent cylinder cover 530 completely covers the light-emitting lamp strip 510 and the lamp strip base 520, thereby providing a sealed environment to prevent flammable and explosive gases from coming into contact with the circuit. The protective net 550 and the reflector 540 cooperate to surround the transparent cylinder cover 530, which can prevent the transparent cylinder cover 530 from being damaged due to accidental bumps as much as possible, thus improving safety.

[0063] In summary, the wire connection structure 20 and the mining explosion-proof LED lighting lamp 40 of the present invention can not only simplify the installation operation steps, but also improve the sealing performance at the connection, and at the same time achieve the functions of anti-pulling and explosion-proof.

[0064] The above-described embodiments merely represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the appended claims.

Claims

1. A flameproof LED lighting lamp for mining, characterized in that: including a wire connection structure; The wire connection structure comprises: a fixed cylinder seat and a connecting piece, wherein the fixed cylinder seat is provided with a mounting hole, and the connecting piece is detachably plugged into the mounting hole; The connector is provided with: a front portion, a main body portion and a rear portion, the main body portion is provided with a wire groove, a power supply wire is wound in the wire groove, and the power supply wire is wound around the wire groove of the main body portion for at least two turns; the rear portion is used to limit the power supply wire; The mounting hole of the fixed cylinder seat is provided with a locking section and a sealing section, and the sealing section is closer to the opening of the mounting hole than the locking section; when the connecting piece is plugged into the mounting hole, the locking section cooperates with the front part, the sealing section cooperates with the main body, and the outer edge of the power supply wire is pressed against the inner wall of the sealing section; The front part is provided with a thread, and the locking section cooperates with the thread of the front part; The diameter of the main body is larger than the diameter of the front part, a stepped plane is formed between the main body and the front part, a step is formed between the locking section and the sealing section, and when the connecting member is inserted into the mounting hole, the stepped plane abuts against the step; The diameter of the main body is greater than the diameter of the rear part, and a second avoidance groove is provided on the connecting member, the second avoidance groove is located on the rear part and the main body, and the second avoidance groove is used to accommodate the power supply wire; The rear portion is provided with a rotatable movable ring, the movable ring is provided with a notch matched with the second avoidance groove, and the movable ring is used to cover the second avoidance groove to limit the power supply wire; The explosion-proof LED lighting lamp for mining comprises: a shell, a power module, a light source module and a lamp tail module, the shell is provided with a wiring cavity, the power module is accommodated in the wiring cavity, and the light source module connects the shell and the lamp tail module; The fixed cylinder seat of the wire connection structure is arranged on the shell, and the power supply wire passes through the shell and is electrically connected to the power module.

2. The explosion-proof LED lighting lamp for mining according to claim 1, characterized in that: The light source module includes: a light bar, a light bar holder, a transparent tube cover, a reflector and a protective net, the light bar is installed on the light bar holder, the light bar holder is accommodated in the transparent tube cover, the two ends of the transparent tube cover are respectively connected to the outer shell and the lamp tail module, the reflector is arranged on one side of the transparent tube cover, the protective net is installed on the reflector, and the protective net and the reflector cooperate to surround the transparent tube cover.

3. The explosion-proof LED lighting lamp for mining according to claim 1, characterized in that: A rubber sealing ring is provided on the stepped plane, and when the connecting member is inserted into the mounting hole, the rubber sealing ring is pressed on the step.

4. The explosion-proof LED lighting lamp for mining according to claim 1, characterized in that: The connecting member is provided with a first avoidance groove, the first avoidance groove is located on the front portion and the main body, and the first avoidance groove is used to accommodate the power supply wire.

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