CN219659063U - Physical experiment wiring lamp holder - Google Patents

Abstract

The utility model discloses a physical experiment wiring lamp holder, which relates to the field of experiment lamp holders, and the technical scheme of the utility model comprises a base and a wiring terminal; the upper end face of the base is provided with a lamp hole and two wiring holes; a connecting seat matched with the lamp cap is arranged in the lamp hole, the wiring terminal is arranged above the wiring hole, the diameter of the wiring terminal is larger than that of the wiring hole, and the wiring terminal is electrically connected with two wiring terminals of the connecting seat through wires; the lower extreme of terminal is provided with and extends to the wiring downthehole first coil spring, the screw from the below in the wiring downthehole direction with first coil spring screw thread adaptation. Can be very stable with the terminal fix on the base, first coil spring and screw complex in-process, first coil spring's flexible elasticity will form pretension pulling force to the terminal of top, can obviously reduce because the contact post above connects repeatedly binding post and appears not hard up possibility.

Description

Physical experiment wiring lamp holder

Technical Field

The utility model relates to the field of experimental lamp holders, in particular to a physical experimental wiring lamp holder.

Background

The middle school electricity experiment can use the equipment of lamp stand, its main structure includes insulating lamp stand and metal terminal, and wherein the terminal is used for connecting binding post in order to supply power. The existing wiring terminal is provided with a wiring cap in a threaded fit mode, and the wiring terminal is tightly pressed on the wiring terminal through the wiring cap so as to achieve electric connection, for example, the technical scheme of the experimental lampholder is disclosed in patent document with the publication number of CN 211237464U. Because the wiring cap needs to rotate on the wiring post repeatedly, the condition of sliding wire appears very easily, therefore the interchangeability needs to be considered to the wiring post, consequently wiring post and lamp stand are detachable connection usually, mainly through the fix with screw, need constantly twist on the wiring post based on the wiring cap, twist in-process that twists very easily with wiring cap and lamp stand and unscrew, screw up again after unscrewing, anti-repetition is repeated, damage the sliding wire with the connection between wiring post and the lamp stand very easily, therefore how to improve the connection stability between wiring post and the lamp stand is the technical problem that this technical scheme needs to solve.

Disclosure of Invention

In order to solve the technical problem, the utility model provides the physical experiment wiring lamp holder, which can stably fix the wiring terminal on the base, and the telescopic elasticity of the first spiral spring forms a pre-tightening tension on the wiring terminal above in the process of matching the first spiral spring with the screw, so that the possibility of loosening caused by repeated connection of the upper contact post with the wiring terminal can be obviously reduced.

The technical scheme adopted for solving the technical problems is as follows: a physical experiment wiring lamp holder comprises a base and a wiring terminal;

the upper end face of the base is provided with a lamp hole and two wiring holes;

a connecting seat matched with the lamp cap is arranged in the lamp hole, the wiring terminal is arranged above the wiring hole, the diameter of the wiring terminal is larger than that of the wiring hole, and the wiring terminal is electrically connected with two wiring terminals of the connecting seat through wires;

the lower extreme of terminal is provided with and extends to the wiring downthehole first coil spring, the screw from the below in the wiring downthehole direction with first coil spring screw thread adaptation.

This scheme sets up first coil spring in the bottom of terminal, in the helix of helix through the screw outer wall adaptation is in first coil spring's helix, form screw-thread fit's structure from this, because first spring spiral on the one hand provide the helix with the screw adaptation, on the other hand helix also is the spring, has flexible elasticity, at the screw with the in-process of terminal fastening at the base, its flexible elasticity can provide pretension pulling force, with the terminal tensioning locking all the time on the base, avoid appearing not hard up after long-term use.

Preferably, a wire slot for burying the wire is arranged between the wiring hole and the lamp hole. The wire can be better fixed through the wire slot.

Preferably, the terminal is a second coil spring. Adopt coil spring's mode as the terminal, the terminal of connection outside that can be better, the more binding post of adaptation, like bolt formula binding post can insert in second coil spring directly, coil spring's elasticity can be with the more stable tight cover of binding post, slice formula binding post can insert the crack piece between coil spring's seal wire directly, utilizes it to press from both sides slice formula binding post clamp, like clamp formula binding post can support clamp in coil spring's lateral wall.

Preferably, the wire connecting device further comprises a wire connecting cap, wherein the inner wall of the wire connecting cap is provided with internal threads matched with the external threads of the second spiral spring. The overall strength of the upper end of the second spiral spring can be improved through the wiring cap, and the connection stability of the second spiral spring is improved. The second spiral spring is matched with the thread of the wiring cap in a threaded manner, so that the wiring cap can be well detached and installed.

Preferably, the outer wall of the wiring cap is provided with protective patterns. So as to better turn the terminal cap.

Preferably, the protection patterns are axially arranged strip-shaped grooves. To improve the friction of the wire cap.

Preferably, a gasket is arranged outside the binding post, and the gasket is positioned between the binding cap and the base. When the sheet-shaped wiring terminal is adopted, the sheet-shaped wiring terminal can be inserted between the gasket and the wiring cap, so that the sheet-shaped wiring terminal can be kept at a certain distance from the base, and the sheet-shaped wiring terminal can be better inserted.

Preferably, the gasket is provided with a notch corresponding to the wire slot. So as to make room for wire connections.

Preferably, the lower surface of the base is buckled with a bottom plate. And the screws are protected, so that the screws below are prevented from loosening due to contact with external objects.

The utility model has the beneficial effects that:

through this scheme can be very stable with the terminal fix on the base, owing to adopt first coil spring, with screw complex in-process, screw can the first coil spring of downwardly pulling, first coil spring's flexible elasticity will form pretension pulling force to the terminal of top for the terminal can be all the time with the firm cooperation of base, can obviously reduce because the contact post above connects repeatedly binding post and appear not hard up possibility.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings required for the description of the embodiments will be briefly described, and it is obvious that the drawings in the following description are only three of the present utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a perspective view of an embodiment of the present utility model;

FIG. 2 is a front view of an embodiment of the present utility model;

FIG. 3 is an enlarged view of part A of FIG. 2 according to an embodiment of the present utility model;

1, a base; 2. a junction cap; 3. a lamp hole; 4. a wire slot; 5. a bottom plate; 6. a screw; 7. clip-type wiring terminals; 8. plug-pin type wiring terminals; 9. a notch; 10. a gasket; 11. sheet-like connection terminals; 12. a first coil spring; 13. a wiring hole; 14. and a second coil spring.

Detailed Description

The present utility model will be further described in detail with reference to the drawings and examples, which are only for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.

Examples

As shown in fig. 1, a physical experiment wiring lamp holder comprises a base 1 and a wiring terminal. The upper end face of the base 1 is provided with a lamp hole 3 and two wiring holes 13, and in this embodiment, two sides of the lamp hole 3 are respectively provided with the wiring holes 13. The lamp hole 3 is internally provided with a connecting seat matched with the lamp cap, the connecting seat is a common quick-connection structure matched with the lamp cap, and the quick-connection structure is not an utility model point of the technical scheme and is the prior art, so that the description is omitted. The wiring hole 13 is provided with the wiring post above, the diameter of the wiring post is larger than that of the wiring hole 13, namely the wiring post is positioned in the wiring hole 13, and the wiring post is electrically connected with two wiring terminals of the connecting seat through wires; the lower end of the binding post is provided with a first spiral spring 12 extending into the wiring hole 13, and the screw 6 is in threaded fit with the first spiral spring 12 from the lower direction of the wiring hole 13.

This scheme sets up first coil spring 12 in the bottom of terminal, in the helix of helix through screw 6 outer wall adaptation in first coil spring 12, form screw-thread fit's structure from this, because first spring spiral on the one hand provides the helix with screw 6 adaptation, on the other hand helix also is the spring, has flexible elasticity, at the in-process of screw 6 with terminal fastening at base 1, its flexible elasticity can provide pretension pulling force, with the terminal tensioning lock all the time on base 1, avoid appearing not hard up after long-term use.

A wire slot 4 is arranged between the wiring hole 13 and the lamp hole 3, and the wire is buried in the wire slot. The wire can be better fixed through the wire slot 4. In the embodiment, the lead adopts a lead metal sheet, so that the durability of use is improved.

As shown in connection with fig. 2 and 3, the post is a second coil spring 14. The mode that adopts coil spring is as the terminal, the external binding post of connection that can be better, and adaptation more binding post, for example bolt formula binding post 8 can insert in second coil spring 14 directly, and coil spring's elasticity can be with the more stable tight cover of binding post, and slice formula binding post 11 can insert the crack piece between coil spring's seal wire directly, utilizes it to press from both sides slice formula binding post 11 tight, for example clamp formula binding post 7 can the support clamp in coil spring's lateral wall.

The wire connecting cap 2 is further included, and an inner wall of the wire connecting cap 2 is provided with an inner thread matched with the outer thread of the second spiral spring 14. The overall strength of the upper end of the second coil spring 14 can be improved by the terminal cap 2, and the stability of connection can be improved. The second coil spring 14 is in threaded fit with the wiring cap 2, so that the wiring cap 2 can be well detached and installed.

The outer wall of the wiring cap 2 is provided with protective patterns. So as to better turn the terminal cap 2. In this embodiment, the protection patterns are axially grooves, and of course, the protection patterns may be strip-shaped protrusions, or directly arranged as protruding points, or made of anti-slip materials.

A gasket 10 is arranged outside the binding post, and the gasket 10 is positioned between the binding cap 2 and the base 1. When the sheet-shaped wiring terminal is adopted, the sheet-shaped wiring terminal can be inserted between the gasket 10 and the wiring cap 2, so that the sheet-shaped wiring terminal can be kept at a certain distance from the base 1, and the sheet-shaped wiring terminal can be better inserted.

The gasket 10 is provided with a notch 9 corresponding to the wire slot 4. So as to make room for wire connections.

The lower surface of the base 1 is buckled with a bottom plate 5. And the screw 6 is protected, so that the lower screw 6 is prevented from being loose in contact with an external object. In this embodiment, the lower part of the base 1 is a tank structure, and the bottom plate 5 is fastened at the lower port of the tank structure

The full pitch of the first coil spring 12 and the second coil spring 14 in this embodiment should be kept the same, so that the thread of the terminal cap 2 or the screw 6 can be smoothly adapted. Of course, since the pitch of the spring after compression can be varied, slight variations in pitch do not significantly affect the use, i.e. the spring deformation is used to adapt to the pitch of the threads of the cap 2 and screw 6.

The utility model has the beneficial effects that:

through this scheme can be with very stable the fixing of terminal on base 1, owing to adopt first coil spring 12, with screw 6 complex in-process, screw 6 can downwardly pull first coil spring 12, and the flexible elasticity of first coil spring 12 will form pretension pulling force to the terminal of top for the terminal can be all the time with the firm cooperation of base 1, can obviously reduce because the contact post above is connected binding post repeatedly and appear not hard up possibility.

It should be noted that the first coil spring 12, the second coil spring 14, the external thread of the screw 6 and the internal thread of the terminal cap 2 are all of a thread structure, so that if the corresponding thread pitch (the distance between the two adjacent thread lines), the thread inner diameter and the thread outer diameter are matched, the thread adaptation between each other can be realized, which is feasible in the field of machinery.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (9)

1. The physical experiment wiring lamp holder is characterized by comprising a base (1) and a wiring terminal;

the upper end face of the base (1) is provided with a lamp hole (3) and two wiring holes (13);

a connecting seat matched with the lamp cap is arranged in the lamp hole (3), the wiring terminal is arranged above the wiring hole (13), the diameter of the wiring terminal is larger than that of the wiring hole (13), and the wiring terminal is electrically connected with two wiring terminals of the connecting seat through a wire;

the lower end of the binding post is provided with a first spiral spring (12) extending into the wiring hole (13), and the screw (6) is in threaded fit with the first spiral spring (12) from the lower direction of the wiring hole (13).

2. A physical experiment wiring lampholder as in claim 1, wherein: a wire slot (4) for burying the wire is arranged between the wiring hole (13) and the lamp hole (3).

3. A physical experiment wiring lampholder as in claim 2, wherein: the binding post is a second coil spring (14).

4. A physical experiment wiring lampholder as in claim 3, wherein: the electric wire connecting device further comprises a wire connecting cap (2), and an inner thread matched with the outer thread of the second spiral spring (14) is arranged on the inner wall of the wire connecting cap (2).

5. The physical experiment wiring lampholder of claim 4, wherein: the outer wall of the wiring cap (2) is provided with protective patterns.

6. The physical experiment wiring lampholder of claim 5, wherein: the protection lines are axially arranged strip-shaped grooves.

7. The physical experiment wiring lampholder of claim 4, wherein: a gasket (10) is arranged outside the binding post, and the gasket (10) is located between the binding cap (2) and the base (1).

8. The physical experiment wiring lampholder of claim 7, wherein: the gasket (10) is provided with a notch (9) corresponding to the wire slot (4).

9. A physical experiment wiring lampholder according to any one of claims 1-8, characterized in that: the lower surface of the base (1) is buckled with a bottom plate (5).