Anti-pulling sound-light control explosion-proof lamp

Abstract

The utility model discloses an anti-pulling sound and light control explosion-proof lamp, the anti-pulling sound and light control explosion-proof lamp comprises a base and an explosion-proof lamp fixed on the base, the base is provided with at least two wire holes, the wire holes are provided with supporting sleeves, the supporting sleeves are internally provided with first supporting parts, the first supporting parts are provided with tightening pieces, and the tightening pieces are provided with second supporting parts. The tightening part is provided with tightening parts which are shrunk inwards, a plurality of through holes which are arranged at equal intervals are uniformly distributed between the tightening parts by taking a circle point as an axis, a limiting sleeve is also arranged in the supporting sleeve and is inserted between the tightening part and the supporting sleeve, so that the tightening part is tightly attached to the first supporting part, and the limiting sleeve is provided with an operating part. According to the utility model, pressure is applied to the operating piece, the operating piece pushes the tightening part to expand outwards, the diameter of the tightening part is expanded, so that a lead can pass through the tightening part conveniently, the force applied to the operating piece is loosened, the tightening part releases elastic force and shrinks towards the center of the tightening part, and clamping force is formed on the lead, so that the product has the advantage of preventing pulling.

Description

Technical Field

[0001] The utility model relates to the technical field of explosion-proof lamps, in particular to an anti-pull sound and light controlled explosion-proof lamp. Background Art

[0002] Sound and light controlled explosion-proof lights are mainly used to send out warning signals in dangerous places to prevent the ignition of explosive gases. Sound and light controlled explosion-proof lights, also known as explosion-proof sound and light alarms, are alarm signal devices specially designed for places with explosive gas environments. It can send out warnings to people through sound and light signals when an emergency such as an accident or fire occurs at the production site, thereby achieving the purpose of alarm. This alarm is suitable for places with explosive gas environments containing Class IIC and T6 temperature groups, such as explosion-proof places in Zone 1 and Zone 2 in the petroleum, chemical and other industries with explosion-proof requirements. It can also be used outdoors.

[0003] The wires of the electronic equipment inside the existing sound and light controlled explosion-proof lamp are connected to the power supply through the wire holes in the base of the sound and light controlled explosion-proof lamp. However, the wires are only sealed by the sealing ring of the wire hole, and the wires are not fixed. During the pulling process of the wires, the dirt on the surface of the wires will rub against the sealing ring, thereby reducing the sealing performance of the sealing ring on the wires. Therefore, the applicant has made a useful design and found a solution to the above problem. The technical solution to be introduced below is produced in this context. Summary of the invention

[0004] The purpose of the utility model is to overcome the shortcomings of the above-mentioned traditional sound and light controlled explosion-proof lamp design and provide an anti-pull product.

[0005] To solve the above problems, the utility model adopts the following technical solutions.

[0006] A pull-proof sound and light-controlled explosion-proof lamp comprises a base and an explosion-proof lamp fixed on the base, wherein the base is provided with at least two wire holes, the wire holes are provided with a supporting sleeve, a first supporting portion is provided inside the supporting sleeve, the first supporting portion is provided with a tightening piece, the tightening piece is provided with a tightening portion that shrinks inwardly, a plurality of through holes with equal spacing are evenly distributed between the tightening portions with a circle as the axis, a limiting sleeve is also provided inside the supporting sleeve and is inserted between the tightening piece and the supporting sleeve so that the tightening piece is tightly attached to the first supporting portion, the limiting sleeve is provided with an operating piece, and the operating piece abuts against the tightening portion.

[0007] Preferably, a limiting portion is provided on the inner wall of the limiting sleeve.

[0008] Preferably, the operating member is provided with a through hole for the wire to pass through, and the outer wall of the operating member is provided with a guide groove, and one end of the guide groove abuts against the limiting portion.

[0009] Preferably, a control portion is provided at one end of the operating member, and an inclined surface is provided at the other end of the operating member and is located above the tightening portion.

[0010] Preferably, a second supporting portion and a third supporting portion are further provided below the first supporting portion.

[0011] Preferably, a sealing ring is provided between the first supporting part and the second supporting part, and between the second supporting part and the third supporting part.

[0012] Preferably, a concave cavity is provided in the tightening portion.

[0013] Beneficial effects:

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model applies pressure to the operating member, which pushes the tightening part to expand outward. The expanded diameter of the tightening part makes it easier for the wire to pass through the tightening part and enter the inside of the base. When the force applied to the operating member is released, the tightening part releases the elastic force and contracts toward the center of the tightening member, pushing the operating member to reset and forming a clamping force on the wire, so that the wire and the base are connected and fixed, thereby overcoming the problems raised by the background technology and giving the product the advantage of anti-pulling. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of an anti-pull sound and light controlled explosion-proof lamp of the utility model;

[0017] Figure 2 It is a partial side cross-sectional structural diagram of an anti-pull sound and light controlled explosion-proof lamp of the utility model;

[0018] Figure 3 For this utility model Figure 2 A partial structure enlarged view of detail A of an anti-pull sound and light controlled explosion-proof lamp;

[0019] Figure 4 This is a schematic diagram of the exploded structure of an anti-pull sound and light controlled explosion-proof lamp of the utility model;

[0020] The corresponding relationship between the illustrations and component names in the figure is as follows:

[0021] Reference numerals: 1, base; 2, explosion-proof lamp; 3, support sleeve; 4, tightening member; 5, limit sleeve; 6, operating member; 7, sealing ring;

[0022] 11. Wire hole;

[0023] 31. First support portion; 32. Second support portion; 33. Third support portion;

[0024] 41. tightening portion; 42. through hole; 43. concave cavity;

[0025] 51. Limiting part;

[0026] 61. Perforation; 62. Guide groove; 63. Control part; 64. Inclined surface. DETAILED DESCRIPTION

[0027] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments 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] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "up", "down", "left" and "right" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0029] In the embodiment of the present invention, "and / or" is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0030] Reference example Figures 1 to 4 A sound and light controlled explosion-proof lamp with an anti-pull function comprises a base 1 and an explosion-proof lamp 2 fixed on the base 1. The base 1 is provided with at least two wire holes 11, and the wire holes 11 are provided with a support sleeve 3. A first support portion 31 is provided in the support sleeve 3. The first support portion 31 is provided with a tightening member 4. The tightening member 4 is provided with an inwardly contracted tightening portion 41. A plurality of through holes 42 with equal spacing are evenly distributed between the tightening portions 41 with a dot as the axis. A limiting sleeve 5 is also provided in the support sleeve 3 and inserted between the tightening member 4 and the support sleeve 3. The tightening member 4 is made to be close to the first supporting portion 31, and the limiting sleeve 5 is provided with an operating member 6, which abuts against the tightening portion 41. By applying pressure to the operating member 6, the operating member 6 pushes the tightening portion 41 to expand outward, and the diameter of the tightening portion 41 is expanded to facilitate the wire to pass through the tightening portion 41 and enter the inside of the base 1. The force applied to the operating member 6 is released, and the tightening portion 41 releases the elastic force and shrinks toward the center of the tightening member 4, pushing the operating member 6 to reset, and forming a clamping force on the wire, so that the wire is connected and fixed to the base 1;

[0031] It is worth mentioning that the inner wall of the limiting sleeve 5 is provided with a limiting portion 51, which prevents the operating member 6 from being separated from the limiting sleeve 5 by the elastic force of the cable tie portion;

[0032] It is worth mentioning that the operating member 6 is provided with a through hole 61 for the wire to pass through, and the outer wall of the operating member 6 is provided with a guide groove 62, one end of the guide groove 62 abuts against the limiting portion 51, and the guide groove 62 cooperates with the limiting portion 51;

[0033] It is worth mentioning that a control portion 63 is provided at one end of the operating member 6, and a slope 64 is provided at the other end of the operating member 6 and is located above the tightening portion 41. The control portion 63 can control the up and down movement of the operating member 6, and the slope 64 facilitates the operating member 6 to enter between the tightening portions 41;

[0034] It is worth mentioning that a second supporting portion 32 and a third supporting portion 33 are provided below the first supporting portion 31, and the second supporting portion 32 and the third supporting portion 33 provide support for the sealing ring 7;

[0035] It is worth mentioning that sealing rings 7 are provided between the first supporting portion 31 and the second supporting portion 32, and between the second supporting portion 32 and the third supporting portion 33, and the sealing performance between the wire and the supporting sleeve 3 is improved by using multiple sealing rings 7;

[0036] It is worth mentioning that a cavity 43 is provided in the tightening portion 41 , and the cavity 43 causes the tightening portion 41 to shrink inward, thereby expanding the diameter of the tightening portion 41 .

[0037] The above design scheme can enable the product to achieve the advantage of anti-pulling.

[0038] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. An anti-pull sound and light controlled explosion-proof lamp, comprising a base (1), and an explosion-proof lamp (2) fixed on the base (1), characterized in that: The base (1) is provided with at least two wire holes (11), the wire hole (11) is provided with a support sleeve (3), a first support portion (31) is provided inside the support sleeve (3), the first support portion (31) is provided with a tightening piece (4), the tightening piece (4) is provided with a tightening portion (41) that contracts inwardly, a plurality of through holes (42) are evenly distributed between the tightening portions (41) with a circle as the axis, a limiting sleeve (5) is also provided inside the support sleeve (3), and is inserted between the tightening piece (4) and the support sleeve (3) so that the tightening piece (4) is tightly attached to the first support portion (31), the limiting sleeve (5) is provided with an operating piece (6), and the operating piece (6) abuts against the tightening portion (41).

2. The anti-pull sound and light controlled explosion-proof lamp according to claim 1, characterized in that: The inner wall of the limiting sleeve (5) is provided with a limiting portion (51).

3. The anti-pull sound and light controlled explosion-proof lamp according to claim 2, characterized in that: The operating member (6) is provided with a through hole (61) for a wire to pass through, and the outer wall of the operating member (6) is provided with a guide groove (62), and one end of the guide groove (62) abuts against the limiting portion (51).

4. The anti-pull sound and light controlled explosion-proof lamp according to claim 3 is characterized in that: One end of the operating member (6) is provided with a control portion (63), and the other end of the operating member (6) is provided with an inclined surface (64) which is located above the tightening portion (41).

5. The anti-pull sound and light controlled explosion-proof lamp according to claim 3 or 4, characterized in that: A second supporting portion (32) and a third supporting portion (33) are also provided below the first supporting portion (31).

6. The anti-pull sound and light controlled explosion-proof lamp according to claim 5, characterized in that: A sealing ring (7) is provided between the first supporting portion (31) and the second supporting portion (32), and between the second supporting portion (32) and the third supporting portion (33).

7. The anti-pull sound and light controlled explosion-proof lamp according to claim 5, characterized in that: A concave cavity (43) is provided in the tightening portion (41).

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