Octagonal lamp holder box cover of straight-inserted single-wall corrugated pipe

Abstract

The utility model relates to the technical field of electric appliance connecting pieces, in particular to an octagonal lamp holder box cover of a direct-insertion single-wall corrugated pipe, which comprises a cover body, the cover body is provided with an insertion hole, the inner side surface of the insertion hole is provided with a buckle groove, a limiting buckle is arranged in the buckle groove, the limiting buckle comprises a flexion and extension ring and a clamping ring, and the flexion and extension ring is connected with the clamping ring. One end of the flexion and extension ring is connected with the buckle groove, the other end of the flexion and extension ring is connected with the clamping ring, and the clamping ring is located on the side, away from the buckle groove, of the flexion and extension ring. According to the utility model, the corrugated pipe is directly inserted into the cover body and is firmly fixed by omitting a joint, so that the installation steps of the corrugated pipe are simplified, the labor cost is reduced, the overall volume after installation is reduced, field wiring is facilitated, and meanwhile, the structure is simple, concise and attractive.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electrical connection, especially to a octagonal lamp holder box cover directly inserting single-wall corrugated pipe. BACKGROUND

[0002] The octagonal lamp holder box is an electrical accessory for installing lighting equipment, usually used on the ceiling or wall, which is convenient for installing lamps, ceiling fans and other equipment. Its shape is octagonal, and it can connect wires, sockets and switches inside to ensure the safety and neatness of electrical connection. According to the size of the opening of the octagonal lamp holder box cover and the diameter of the single-wall corrugated pipe, select the appropriate joint. The commonly used joints are metal joints and plastic joints, and the joints with compression nuts can better fix the single-wall corrugated pipe. The current common installation method of corrugated pipe and octagonal lamp holder box is to insert the joint into the opening of the octagonal lamp holder box, and then wrap the end of the single-wall corrugated pipe into the joint with electrician tape, which is more complicated.

[0003] Chinese patent, publication number CN 209929903 U, discloses an electrician wiring corrugated pipe joint, which relates to the technical field of electrical connection, comprising a plug at one end, a socket at the other end, and a circular pipe structure formed by an elastic socket in the middle; two outwardly protruding boss buckles are symmetrically provided on the side wall of the elastic socket, two elastic buckles are symmetrically provided on the side wall of the socket, and an inner boss is provided in the socket; the outer diameters of the plug, the elastic socket and the socket increase in turn. The above-mentioned utility model still has a complicated step when installing the corrugated pipe. UTILITY MODEL CONTENTS

[0004] In view of the problem that the installation steps of the corrugated pipe and the octagonal lamp holder box are complicated in the prior art, in order to further simplify the installation of the corrugated pipe, the utility model provides a box cover structure which can complete the installation by directly inserting the corrugated pipe into the octagonal lamp holder box cover, simplify the installation steps, improve the installation efficiency, and firmly connect the corrugated pipe and the octagonal lamp holder box.

[0005] To achieve the above technical effects, the utility model provides:

[0006] An octagonal lamp holder box cover directly inserting single-wall corrugated pipe, comprising a cover body, the cover body is provided with a plug-in hole, the inner side of the plug-in hole is provided with a buckle groove, a limiting buckle is arranged in the buckle groove, the limiting buckle comprises a flexing ring and a clamping ring, one end of the flexing ring is connected with the buckle groove, and the other end of the flexing ring is connected with the clamping ring, and the clamping ring is located on the side of the flexing ring away from the buckle groove.

[0007] The corrugated pipe is inserted into the insertion hole, the undulation of the corrugated pipe wall pushes the clamping block, the clamping block pushes the cantilever to generate bending deformation, the limiting buckle enters the buckle slot, the clamping block enters the buckle slot between the undulation of the corrugated pipe wall and then returns to the static position, and the corrugated pipe is inserted in this process; after the insertion is completed, the top tip of the clamping block is located in a recess of the corrugated pipe wall, and the clamping block fixes the corrugated pipe.

[0008] The cantilever and the buckle slot have a movement gap.

[0009] The cantilever is arranged axially along the insertion hole.

[0010] The clamping ring is triangular in longitudinal section, and the clamping ring comprises a first clamping surface and a second clamping surface, the first clamping surface is connected to the insertion hole at the connection position of the flexure ring, and the second clamping surface is away from the connection position of the flexure ring and the insertion hole.

[0011] The first clamping surface forms an angle α with the horizontal plane, and 25°≤α≤35°, and the second clamping surface forms an angle β with the horizontal plane, and 0°≤β≤5°.

[0012] Optionally, α=30° and β=0°.

[0013] The octagonal lamp holder box comprises eight side surfaces, four of which are provided with wiring holes, and the side surfaces provided with the wiring holes are arranged at intervals.

[0014] The octagonal lamp holder box has a cover mounting surface, and the edge of the cover has eight corners.

[0015] The peripheral side of the cover has eight corners, and the shape is arranged correspondingly to the cover mounting surface.

[0016] The beneficial effects of the utility model are:

[0017] The utility model has the advantages of simple structure, low manufacturing cost, simplified corrugated pipe installation steps, reduced labor cost, omitted joint installation, reduced overall size after installation, facilitated on-site wiring, and simple and beautiful appearance. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole structure diagram of the octagonal lamp holder box cover of the straight insertion single-wall corrugated pipe.

[0019] Figure 2 It is a limiting buckle structure diagram in the second embodiment.

[0020] Figure 3 It is a limiting buckle structure diagram in the third embodiment.

[0021] Figure 4It is a structural schematic view of the octagonal lamp holder box.

[0022] Figure 5 It is an assembly view of the octagonal lamp holder box, the box cover and the single-wall corrugated pipe.

[0023] Reference signs:

[0024] 100, cover body; 200, octagonal lamp holder box; 300, corrugated pipe;

[0025] 101, plug hole; 102, buckle groove; 103, limiting buckle; 104, flex ring; 105, clamping ring; 106, moving gap; 107, first clamping surface; 108, second clamping surface; 201, wiring hole; 202, mounting surface; DETAILED DESCRIPTION

[0026] The following describes the embodiments of the utility model by specific examples, and those skilled in the art can easily understand other advantages and effects of the utility model from the disclosed content.

[0027] The utility model provides a kind of octagonal lamp holder box cover of direct insertion single-wall corrugated pipe, the following describes preferred embodiment of octagonal lamp holder box cover of direct insertion single-wall corrugated pipe.

[0028] Example one

[0029] The octagonal lamp holder box is a kind of electrical fittings for installing lighting equipment, usually used on ceiling or wall, it is convenient to install lamps, ceiling fan and other equipment.The shape is octagonal, inside can be connected wire, socket and switch, to ensure the safety and neatness of electrical connection.According to the size of the hole of octagonal lamp holder box cover and the diameter of single-wall corrugated pipe, select the adapter.The commonly used adapter has metal adapter and plastic adapter, the adapter with compression nut can better fix single-wall corrugated pipe.The commonly used installation mode of corrugated pipe and octagonal lamp holder box is to insert adapter into the hole of octagonal lamp holder box, and the end of single-wall corrugated pipe is sleeved into adapter, and then several turns of electrician tape are wound around the hose interface, to increase the stability of connection, which is relatively cumbersome.The utility model is to improve the installation efficiency of corrugated pipe and simplify installation steps, proposes a kind of octagonal lamp holder box cover without traditional direct insertion adapter, which can be directly inserted into the box cover plug hole to complete installation, greatly reduces installation steps, reduces labor cost, is suitable for the scene of rapid construction;At the same time, the box cover structure is simple, the manufacturing cost is reduced, the cost is significantly reduced in large-scale construction;After reducing the traditional adapter, the space used by octagonal lamp holder box is smaller, suitable for narrow space and embedded environment, makes actual limit more flexible;More beautiful.

[0030] Reference attached Figure 1 And Figure 2In the embodiment, the octagonal lamp holder box cover directly inserting the single-wall corrugated pipe includes a cover body 100 having eight corners and an insertion hole 101 arranged at a middle position. A buckle groove 102 is arranged on the inner side of the insertion hole 101. A limiting buckle 103 is arranged in the buckle groove 102. The limiting buckle 103 is uniformly or symmetrically arranged in the buckle groove 102. The limiting buckle 103 includes a bending ring 104 and a clamping ring 105. One end of the bending ring 104 is connected to the buckle groove 102, and the other end is connected to the clamping ring 105. The bending ring 104 is arranged along the axis of the insertion hole 101. A moving gap 106 is arranged between the bending ring 104 and the buckle groove 102. The moving gap 106 is the maximum distance moved by the limiting buckle 103 when deformed. The cross section of the clamping ring 105 is a right triangle. This arrangement ensures that the single-wall corrugated pipe is not easily pulled out after being connected to the insertion hole 101, and the connection is stable. The side surface formed by the right angle of the cross section of the clamping ring 105 is fixedly connected to the bending ring 104, and the other side surface formed by the right angle is close to the suspended end of the bending ring 104. This arrangement makes the cooperation between the single-wall corrugated pipe and the limiting buckle 103 more smooth.

[0031] When the single-wall corrugated pipe cooperates with the box cover in the embodiment, a corrugated pipe 300 with a size suitable for the insertion hole 101 is used for insertion. When in use, the pipe wall of the corrugated pipe 300 in front of the insertion direction pushes the side surface formed by the triangular bevel of the clamping ring 105. The bending ring 104 deforms from the clamping ring 105 to the other end. The limiting buckle 103 as a whole enters the buckle groove 102. When a protrusion on the pipe wall of the corrugated pipe 300 passes through the limiting buckle 103, the limiting buckle 103 returns to the initial position, and the next protrusion pushes the limiting buckle 103. After the insertion of the corrugated pipe 300 is completed, since the side surface formed by the right angle of the clamping ring 105 is perpendicular to the bending ring 104, and the side surface formed by the bevel faces the opposite direction of the insertion direction, the corrugated pipe 300 is not easily pulled out of the insertion hole 101, and the connection is firm.

[0032] Embodiment two

[0033] In view of the problems in the prior art that the installation steps of the corrugated pipe are relatively complex, usually an additional joint is needed to be connected or an insulating tape is needed to be fixed, the installation steps are tedious, the material cost and labor cost are high when facing large-scale construction, the utility model provides a box cover structure which can complete the installation by directly inserting the corrugated pipe into the octagonal lamp holder box cover, simplifies the installation steps of the corrugated pipe, reduces the material cost and labor cost, is suitable for large-scale construction and rapid construction scenes, reduces the budget, and the simple structure makes the on-site wiring more flexible and the appearance more beautiful. In the embodiment, the specific parameters of the clamping ring are limited to realize the quick insertion of the corrugated pipe and the function of extracting the corrugated pipe as needed.

[0034] Reference is made to the accompanying drawings Figure 1 andFigure 2 In the embodiment, the cover 100 is made of PVC material, and the plug-in hole 101 is arranged at the middle position. The buckle groove 102 is arranged on the inner side of the plug-in hole 101 and is formed in the inner side of the plug-in hole 101. The limiting buckle 103 includes the bending and stretching ring 104 and the clamping ring 105. The bending and stretching ring 104 is in a bar structure, one end of which is connected with the buckle groove 102, and the other end is connected with the clamping ring 105. The bending and stretching ring 104 is arranged in the axial direction of the plug-in hole 101. The moving gap 106 is arranged between the bending and stretching ring 104 and the buckle groove 102, and is the maximum distance moved when the limiting buckle 103 is deformed. The clamping ring 105 is in a triangular shape in the longitudinal section. The inclined surface of the clamping ring 105, which is directed to the connection between the plug-in hole 101 and the bending and stretching ring 104, is the first clamping surface 107. The first clamping surface 107 has an angle a with the horizontal plane. In the embodiment, the angle a is 35°. The inclined surface of the clamping ring 105, which is away from the connection between the plug-in hole 101 and the bending and stretching ring 104, is the second clamping surface 108. The second clamping surface 108 has an angle β with the horizontal plane. In the embodiment, the angle β is 5°. The purpose of such arrangement is to make the force smaller when the corrugated pipe 300 is plugged in. The limiting buckle 103 has a certain limiting effect on the corrugated pipe 300, and the corrugated pipe 300 will not easily fall off after the connection is completed. When the corrugated pipe 300 needs to be pulled out, a little force can make the corrugated pipe 300 be pulled out.

[0035] Reference is made to the accompanying drawings Figure 4 And Figure 5 In the embodiment, the octagonal lamp holder box 200 is integrally injection molded. The octagonal lamp holder box 200 includes eight sides. Four sides are provided with the wire hole 201. The stainless steel bushing is embedded in the wire hole 201 to improve the strength of the wire hole 201. The wire holes 201 are arranged at intervals on the side. The octagonal lamp holder box 200 has the mounting surface 202 of the cover 100. The edge of the cover 100 has eight corners. The cover 100 has eight corners on the side, and the shape is arranged corresponding to the mounting surface 202 of the cover 100. The cover 100 is connected with the octagonal lamp holder box 200 by the bolt fastening.

[0036] When the single-wall corrugated pipe is matched with the box cover in the embodiment, the corrugated pipe 300 wall in front of the insertion direction pushes the side formed by the triangular bevel of the clamping ring 105, the flex ring 104 is bent by the clamping ring 105 to the other end, the limiting buckle 103 is entirely inserted into the buckle slot 102, when a protrusion on the corrugated pipe 300 wall passes through the limiting buckle 103, the limiting buckle 103 returns to the initial position, the next protrusion pushes the limiting buckle 103; after the insertion of the corrugated pipe 300 is completed, since the side formed by the right angle edge of the clamping ring 105 is perpendicular to the flex ring 104, the side formed by the bevel faces the reverse direction of the insertion direction, the corrugated pipe 300 is not easy to be pulled out of the insertion hole 101, and the connection is firm; in individual scenes, the corrugated pipe 300 needs to be pulled out, the construction personnel need to use a slightly larger pulling force than when the corrugated pipe 300 is inserted, the corrugated pipe 300 moves along the reverse direction of the insertion direction, the limiting buckle 103 repeats the movement when the corrugated pipe 300 is inserted, and the corrugated pipe 300 is pulled out.

[0037] In the embodiment, by limiting the angle of the clamping ring 105 and the matching bevel of the corrugated pipe 300, stable connection of the corrugated pipe 300 in the insertion hole 101 can be realized, and the technical effect that the corrugated pipe 300 is pulled out by a certain pulling force when needed can be achieved.

[0038] Embodiment three

[0039] In the embodiment, by limiting the specific parameters of the clamping ring 105, the basic function of the box cover can be realized, which can be used as a commonly used model, can achieve quick insertion and installation of the corrugated pipe 300, and stable connection of the corrugated pipe 300 in the insertion hole 101 without easy falling off.

[0040] Reference drawings Figure 1 and Figure 3The embodiment provides a octagonal lamp holder box cover directly inserting a single-wall corrugated pipe, which is simple in structure and low in manufacturing cost, wherein the cover body 100 is made of ABS injection molding, a plug-in hole 101 is arranged at the middle position, a buckle groove 102 is arranged on the inner side of the plug-in hole 101, and the buckle groove 102 is arranged on the inner side of the plug-in hole 101; the limiting buckle 103 comprises a flexing ring 104 and a clamping ring 105, one end of the flexing ring 104 is connected with the buckle groove 102, and the other end is connected with the clamping ring 105, wherein the flexing ring 104 is arranged axially along the plug-in hole 101. There is a moving gap 106 between the flexing ring 104 and the buckle groove 102, the moving gap 106 is the maximum distance moved when the limiting buckle 103 is deformed; the clamping ring 105 is in the shape of a right triangle in cross section, which is arranged to ensure that the single-wall corrugated pipe is not easy to be pulled out after being connected with the plug-in hole 101, and the connection is stable; the clamping ring 105 is in the shape of a triangle in longitudinal cross section, the slope of the clamping ring 105 towards the connection position of the flexing ring 104 and the plug-in hole 101 is a first clamping surface 107, the first clamping surface 107 has an angle α with the horizontal plane, and the angle α is 30° in the embodiment; the slope of the clamping ring 105 away from the connection position of the flexing ring 104 and the plug-in hole 101 is a second clamping surface 108, the second clamping surface 108 has an angle β with the horizontal plane, and the angle β is 0° in the embodiment, that is, the second clamping surface 108 is perpendicular to the axis of the plug-in hole 101; after the clamping ring 105 is clamped with the corrugated pipe 300, the clamping ring 105 locks the corrugated pipe 300; the corrugated pipe 300 is relatively smooth when being connected, and the connection is firm after being connected.

[0041] The accompanying drawings are referred to in the description of the embodiments. Figure 4 And Figure 5 In the embodiment, the octagonal lamp holder box 200 comprises eight sides, four sides of which are provided with wiring holes 201, the wiring holes 201 are embedded with stainless steel bushings to improve the strength of the wiring holes 201, and the sides provided with the wiring holes 201 are arranged at intervals; the octagonal lamp holder box 200 has a cover body 100 mounting surface 202, and the edge of the cover body 100 has eight corners; the circumferential side of the cover body 100 has eight corners, and the shape is correspondingly arranged with the cover body 100 mounting surface 202; the cover body 100 is connected with the octagonal lamp holder box 200 by means of bolt fastening.

[0042] When the construction personnel installs, the plug-in section of the corrugated pipe 300 is inserted into the plug-in hole 101, the outer pipe wall of the corrugated pipe 300 drives the limiting buckle 103, the clamping ring 105 is pushed and extruded by the corrugated pipe 300 pipe wall and the flexing ring 104 is elastically deformed, and moves to the buckle groove 102 and returns to the static position; after the plug-in is completed, the top tip of the clamping ring 105 is located in a recess of the corrugated pipe 300, the side of the clamping ring 105 towards the plug-in direction of the corrugated pipe 300 is parallel to the end surface of the cover body 100, the corrugated pipe 300 is not easy to push the clamping ring 105 when moving in the opposite direction of the plug-in direction, and the clamping ring 105 clamps and fixes the corrugated pipe 300.

[0043] Due to the thickness of the cover body 100 itself, the length of the flex ring 104 is short, so the force required to push the clamping ring 105 to deform the flex ring 104 is greater than that when the length of the flex ring 104 is longer. In actual application scenarios, it is necessary to ensure that the construction personnel cannot exert too much force when inserting the bellows 300 into the insertion hole 101, so the length of the limiting buckle 103 is designed according to the material properties and size of the cover body 100 to ensure that the bellows 300 cannot be pulled out.

[0044] The octagonal lamp cap structure of the straight insertion single-wall bellows in the above embodiment is simple, and compared with the prior art, only the bellows 300 needs to be inserted into the insertion hole 101 during installation, so the installation is fast, and through the angle limitation of the clamping ring 105, the bellows 300 can be stably inserted into the insertion hole 101 and is not easy to be pulled out. The angle of the clamping ring 105 can also be adjusted to enable the bellows 300 to be pulled out under a certain force. For ordinary skilled persons in the technical field, the expected improvement and modification can be made without departing from the principles of the present application, and the adjustment can be made according to actual use requirements.

[0045] The above is a preferred embodiment of the present application, which is used to illustrate the present application and the effects generated. It should be pointed out that for ordinary skilled persons in the technical field, the expected improvement and modification can be made without departing from the principles of the present application, and these improvements and modifications are also within the protection scope of the present application.

Claims

1. A box cover for a direct plug-in single-wall corrugated octal base lamp, characterized by, The cover is provided with a plug hole, the inner side of the plug hole is provided with a buckle groove, the buckle groove is provided with a limiting buckle, the limiting buckle comprises a bending and stretching ring and a clamping ring, one end of the bending and stretching ring is connected with the buckle groove, and the other end is connected with the clamping ring, and the clamping ring is located on the side of the bending and stretching ring away from the buckle groove.

2. A box cover for a direct plug-in single-wall corrugated octagonal lamp holder according to claim 1, characterized in that The bending and stretching ring and the buckle groove have a moving gap.

3. A box cover for a direct plug-in single-wall corrugated octagonal lamp holder according to claim 2, characterized in that The bending and stretching ring is arranged axially along the plug hole.

4. A box cover for a direct plug-in single-wall corrugated octagonal lamp holder according to claim 3, characterized in that The longitudinal section of the clamping ring is triangular, the clamping ring comprises a first clamping surface and a second clamping surface, the first clamping surface is connected with the plug hole at the connection position of the bending and stretching ring, and the second clamping surface is away from the connection position of the bending and stretching ring and the plug hole.

5. An octagon lamp holder box cover directly inserted into a single-wall corrugated pipe according to claim 4, characterized in that, The first clamping surface has an angle α with the horizontal plane, 25°≤α≤35°, and the second clamping surface has an angle β with the horizontal plane, 0°≤β≤5°.

6. An octagon lamp holder box cover directly inserted into a single-wall corrugated pipe according to claim 5, characterized in that, α=30°，β=0°。 7. A box cover for an octagonal lamp holder for direct insertion into a single-wall corrugated pipe according to any one of claims 1 to 6, characterized in that The octagonal lamp holder box comprises eight side surfaces, four of which are provided with wiring holes and are arranged at intervals.

8. A box cover for a direct plug-in single-wall corrugated octal lamp holder according to claim 7, characterized in that The octagonal lamp holder box has a cover mounting surface, and the edge of the cover has eight corners.

9. An octagon lamp holder box cover directly inserted into a single-wall corrugated pipe according to claim 8, characterized in that, The peripheral side of the cover has eight corners, and the shape is correspondingly arranged with the cover mounting surface.

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