Direct lead-in structure of explosion-proof electric wire

Abstract

The utility model discloses a direct lead-in structure of an explosion-proof electrical wire, which comprises an electrical shell, a through hole of the electrical shell is slidably connected with a wire outlet pipe, a connecting sleeve is sleeved in the wire outlet pipe, and the outer wall of the connecting sleeve is provided with a fixing mechanism. A wire can be led in from the connecting sleeve and the sealing ring and connected with an electric appliance in the electric shell, then the two arc-shaped clamping plates are driven to move so that the arc-shaped clamping plates can be attached to the wire, then the first nut is installed, the positions of the first nut and the second nut on the screw rod are adjusted, and the first nut and the second screw rod can be attached to the transverse plate. In this way, the positions of the screw rod and the arc-shaped clamping plate can be fixed, and the electric wire is clamped through the arc-shaped clamping plate, so that the electric wire is not easy to move at the wire outlet pipe and the sealing ring when being subjected to external pulling force, and the sealing performance and the stability after threading are ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of explosion -proof electrical technique, concretely is a kind of direct introduction structure of explosion -proof electrical wire. BACKGROUND

[0002] Explosion -proof electrical is electrical that can prevent explosion in the occasion containing explosive dangerous gas mixture. The explosion -proof electrical of our country is basically divided into two categories: one is called mine explosion -proof electrical, mainly applied in coal mine, mine has gas and other explosive gas prominent place, another is called factory explosion -proof electrical, mainly applied in all places except mine, coal mine. Direct introduction structure of wire is usually installed on explosion -proof electrical.

[0003] For example, the direct introduction structure of explosion -proof electrical wire of the utility model discloses CN201320407931.4, including compression nut, baffle, outlet, sealing ring, locking nut, beneficial effect is: simple structure, low manufacturing cost, convenient to install, can meet the requirements of sealing, explosion -proof simultaneously;

[0004] The direct introduction structure of explosion -proof electrical wire is through compression nut cooperation locking nut and sealing ring and is passed through electrical shell by wire, but as there is no structure for clamping the wire that is passed in at compression nut or outlet, so when wire is subjected to external pulling force, it is easy to move at outlet and sealing ring, thereby reducing the sealing performance and stability after threading. UTILITY MODEL CONTENTS

[0005] In view of the deficiency of prior art, the utility model provides a kind of direct introduction structure of explosion -proof electrical wire, solve the direct introduction structure of existing explosion -proof electrical wire, there is no structure for clamping the wire that is passed in at compression nut or outlet, so when wire is subjected to external pulling force, it is easy to move at outlet and sealing ring, thereby reducing the sealing performance and stability after threading.

[0006] To achieve the above object, the utility model is realized by the following technical scheme: a kind of direct introduction structure of explosion -proof electrical wire, including electrical shell, the sliding connection of the through hole of electrical shell has outlet pipe, the inside sleeve of outlet pipe is connected with connecting sleeve, the outer wall of connecting sleeve is installed with fixed mechanism;

[0007] The fixed mechanism includes the connecting disc of the fixed connection of outlet pipe outer wall, the outer wall of connecting disc is fixedly connected with a pair of cross plate, the through hole of cross plate is slidably connected with screw rod, the end of screw rod near connecting sleeve is fixedly connected with arc clamping plate, and locking assembly is installed on screw rod.

[0008] Preferably, the locking assembly comprises a first nut and a second nut threadedly connected with the outer wall of the screw rod, and the first nut and the second nut are adjacent to the outer wall of the transverse plate.

[0009] Preferably, the sealing ring is clamped in the clamping groove of the outlet pipe, and the outer wall of the sealing ring is attached to the connecting sleeve.

[0010] Preferably, the third nut is threadedly connected with the outer wall of the outlet pipe, and the outer wall of the third nut is attached to the outer wall of the electrical shell.

[0011] Preferably, the inner wall of the arc-shaped clamping plate is bonded with a rubber pad.

[0012] Beneficial effects

[0013] The utility model provides a kind of direct introduction structure of explosion-proof electrical wire, with the following beneficial effects:

[0014] The connecting sleeve and the sealing ring can be installed inside the outlet pipe, and then the outlet pipe is inserted into the electrical shell, and the connecting disc is attached to the outer wall of the electrical shell. Then the third nut is installed on the outlet pipe and rotated until it is attached to the electrical shell. The second nut is installed on the screw rod, and then the screw rod is inserted into the through hole of the transverse plate. Then the electrical wire is introduced from the connecting sleeve and the sealing ring and connected to the electrical appliance in the electrical shell. The movement of the two arc-shaped clamping plates is driven, and the arc-shaped clamping plates are attached to the electrical wire. Then the first nut is installed, and the positions of the first nut and the second nut on the screw rod are adjusted so that the first nut and the second screw rod are attached to the transverse plate. In this way, the positions of the screw rod and the arc-shaped clamping plates are fixed, and the electrical wire is clamped by the arc-shaped clamping plates. Therefore, the electrical wire is not easily moved at the outlet pipe and the sealing ring when subjected to external pulling force, thereby ensuring the sealing performance and stability after threading. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is a structural schematic diagram of the utility model.

[0016] Fig. 2 It is a sectional view of the utility model.

[0017] Fig. 3 It is a local enlarged schematic diagram of the utility model.

[0018] In the figure: 1, electrical shell; 2, outlet pipe; 3, connecting sleeve; 4, connecting disc; 5, transverse plate; 6, screw rod; 7, arc-shaped clamping plate; 8, first nut; 9, second nut; 10, rubber pad; 11, sealing ring; 12, third nut. DETAILED DESCRIPTION

[0019] Clearly, the described embodiments are merely part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present utility model.

[0020] Please refer to Figs. 1-3 The utility model provides a kind of technical scheme: a kind of direct introduction structure of explosion-proof electrical wire, including electrical shell 1, the through hole of the electrical shell 1 is slidably connected with outgoing line pipe 2, the inside sleeve joint of outgoing line pipe 2 is connected with sleeve 3, and the outer wall of sleeve 3 is equipped with fixed mechanism;

[0021] The fixed mechanism includes the connecting disc 4 fixedly connected with the outer wall of outgoing line pipe 2, the outer wall of the connecting disc 4 is fixedly connected with a pair of cross plates 5, the through hole of the cross plate 5 is slidably connected with screw rod 6, and the end of screw rod 6 close to sleeve 3 is fixedly connected with arc-shaped clamping plate 7, and locking assembly is installed on screw rod 6;

[0022] The through hole can be processed in the inside of electrical shell 1, so that outgoing line pipe 2 is conveniently inserted, and the through hole is processed in the inside of cross plate 5, so that screw rod 6 is conveniently inserted.

[0023] The embodiment is further provided, and the locking assembly includes the first nut 8 and the second nut 9 threadedly connected with the outer wall of screw rod 6, and the outer wall of the first nut 8 and the second nut 9 is attached with the outer wall of cross plate 5;

[0024] The first nut 8 and the second nut 9 cooperate with cross plate 5 to fix screw rod 6.

[0025] The embodiment is further provided, and the sealing ring 11 is clamped in the clamping groove of outgoing line pipe 2, and the outer wall of sealing ring 11 is attached with sleeve 3;

[0026] The clamping groove is processed in the inside of outgoing line pipe 2, so that sealing ring 11 is limited.

[0027] The embodiment is further provided, and the outer wall of outgoing line pipe 2 is threadedly connected with the third nut 12, and the outer wall of the third nut 12 is attached with the outer wall of electrical shell 1;

[0028] The third nut 12 cooperates with connecting disc 4 to connect the device with electrical shell 1.

[0029] The embodiment is further provided, and the inner wall of arc-shaped clamping plate 7 is bonded with rubber pad 10;

[0030] The rubber pad 10 can protect the electrical wire.

[0031] It is worth mentioning that the standard parts used in the utility model can be purchased from the market, and the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolt, rivet and welding in the prior art, the electrical structure equipment model involved can be selected according to the demand of the user, and only the use demand of the application needs to be met, and the circuit connection adopts the conventional connection mode in the prior art, the control, current detection, position feedback, prediction voltage synchronization and parameter adjustment of the electrical equipment are all the prior art, and details are not described here. The contents not described in detail in the specification all belong to the prior art known to those skilled in the art.

[0032] By the skilled in the art, the parts in the case are connected in turn, the specific connection and operation sequence should be referred to the following working principle, and the detailed connection means is the known technology in the art, and the following mainly introduces the working principle and process.

[0033] Embodiment: when the device needs to be used, the connecting sleeve 3 and the sealing ring 11 can be installed in the inside of the outlet pipe 2, then the outlet pipe 2 is inserted into the inside of the electrical shell 1, and the connecting disc 4 is attached to the outer wall of the electrical shell 1, then the third nut 12 is installed on the outlet pipe 2, and the third nut 12 is rotated until the third nut 12 is attached to the electrical shell 1, the second nut 9 is installed on the screw rod 6, then the screw rod 6 is inserted into the through hole of the horizontal plate 5, then the electric wire is introduced from the connecting sleeve 3 and the sealing ring 11, and connected with the electrical equipment in the electrical shell 1, then the two arc-shaped clamping plates 7 are moved, so that the arc-shaped clamping plates 7 are attached to the electric wire, then the first nut 8 is installed, and the position of the first nut 8 and the second nut 9 on the screw rod 6 is adjusted, so that the first nut 8 and the second screw 9 are attached to the horizontal plate 5, so that the position of the screw rod 6 and the arc-shaped clamping plate 7 can be fixed, and the electric wire is clamped by the arc-shaped clamping plate 7, so that the electric wire is not easy to move at the outlet pipe 2 and the sealing ring 11 when the electric wire is subjected to the pulling force of the outside, and the sealing performance and the stability after threading are ensured.

[0034] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, 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 include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises a... " does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0035] While embodiments of the present application have been shown and described with reference to the figures, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and alterations can be made thereto without departing from the spirit and scope of the present application, which should be limited only by the scope of the appended claims and the equivalents thereof.

Claims

1. A direct entry structure for an explosion-proof electrical cable, comprising an electrical housing (1), characterized in that: The electric shell (1) is slidably connected with an outlet pipe (2) at the through hole, the inside of the outlet pipe (2) is sleeved with a connecting sleeve (3), the outer wall of the connecting sleeve (3) is installed with a fixing mechanism; The fixing mechanism comprises a connecting disc (4) fixedly connected with the outer wall of the outlet pipe (2), the outer wall of the connecting disc (4) is fixedly connected with a pair of transverse plates (5), the through hole of the transverse plate (5) is slidably connected with a screw rod (6), the end of the screw rod (6) close to the connecting sleeve (3) is fixedly connected with an arc-shaped clamping plate (7), and the screw rod (6) is installed with a locking assembly.

2. The direct entry construction of an explosion-proof electrical wire according to claim 1, wherein The locking assembly comprises a first nut (8) and a second nut (9) threadedly connected with the outer wall of the screw rod (6), and the outer wall of the first nut (8) and the second nut (9) is in close contact with the outer wall of the transverse plate (5).

3. The direct entry construction of an explosion-proof electrical wire according to claim 1, wherein The sealing ring (11) is clamped in the clamping groove of the outlet pipe (2), and the outer wall of the sealing ring (11) is in close contact with the connecting sleeve (3).

4. The direct entry construction of an explosion-proof electrical wire according to claim 1, wherein The outer wall of the outlet pipe (2) is threadedly connected with the third nut (12), and the outer wall of the third nut (12) is in close contact with the outer wall of the electric shell (1).

5. The direct entry construction of an explosion-proof electrical wire according to claim 1, wherein The inner wall of the arc-shaped clamping plate (7) is bonded with the rubber pad (10).

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