Connector for prepressing

Abstract

The utility model relates to the field of connectors, and discloses a connector for prepressing, which comprises a connector main body, an upper prepressing sleeve is arranged at the upper part of the connector main body, a prepressing head is arranged at the upper part of the upper prepressing sleeve, the side part of the prepressing head is connected with the inner wall of the upper prepressing sleeve in a sliding manner, a prepressing spring is arranged in the upper prepressing sleeve, and the prepressing head is connected with the inner wall of the prepressing sleeve in a sliding manner. A lower prepressing sleeve is arranged on the lower portion of the connector body, a crown spring is arranged in the lower prepressing sleeve, an inserting column is arranged on the lower portion of the prepressing head, the prepressing head and the inserting column are of an integrated structure, the upper portion of the prepressing spring is connected with the prepressing head, the inserting column is inserted into the prepressing spring, the middle of the crown spring is arranged in an inward-retracting mode, and a plurality of spring grooves are evenly formed in the middle of the crown spring. The prepressing head and the upper part of the connector main body are arranged in a plane, so that the production cost of the prepressing connector can be reduced, the production difficulty of products is reduced, and the defective rate is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a connector for preloading. Background Technique

[0002] The telescopic spring ejector pin is a preloading connector widely used in consumer electronic products. It is composed of a needle tip, a needle tube, a spring, a mushroom head, a tail plug and other components. Through various internal structural designs, stable and reliable connection between parts is ensured, playing the role of transmitting current and signals. Due to the characteristics of large current transmission, small occupied space, accurate contact, waterproof and high-strength application, etc., it is the first choice for the application of external interface connectors among peripheral consumer connectors.

[0003] Generally, the telescopic spring ejector pin is mainly applied to an electronic pen. One end is a threaded hole structure, which is screwed into the pen tip at the front end of the electronic pen. The writing angle and force are accurately transmitted to the rear end through the locking force between the threads. The rear end is a special telescopic spring ejector pin design, and a boss is arranged inside the needle tip to insert the spring.

[0004] The current structure of the connector has the following problems. Since the space size of the electronic pen is small, if traditional threading connection is adopted, in order to ensure that the preloading sleeve can be easily screwed into the pen tip thread, a rotating milling surface is designed in the middle of the preloading sleeve, which will increase the processing cost of the product. When machining the M1.2 internal thread in the preloading sleeve, the longer the screwing-in length, the higher the straightness of the product, and the internal thread of the deep and narrow hole is not conducive to the discharge of residues. That is, the defective rate of the product is about 10%, and there is a risk of high skewness of the pen tip when the pen tip is not installed in place. Therefore, we propose a connector for preloading. Content of the Utility Model

[0005] In view of the deficiencies of the prior art, the utility model provides a connector for preloading, which solves the problems mentioned in the above background.

[0006] The utility model provides the following technical solutions: The utility model discloses a connector for preloading, including a connector body. An upper preloading sleeve is arranged on the upper part of the connector body. A preloading head is arranged on the upper part of the upper preloading sleeve. The side part of the preloading head is slidably connected with the inner wall of the upper preloading sleeve. A preloading spring is arranged inside the upper preloading sleeve. A lower preloading sleeve is arranged on the lower part of the connector body. A crown spring is arranged in the lower preloading sleeve.

[0007] As a preferred solution, an insertion post is arranged on the lower part of the preloading head. The preloading head and the insertion post are integrally structured. The upper part of the preloading spring is connected with the preloading head. The insertion post is inserted inside the preloading spring.

[0008] As a preferred solution, the middle part of the crown spring is inwardly recessed, and a plurality of spring grooves are evenly formed in the middle part of the crown spring.

[0009] As a preferred solution, the upper plane of the pre-pressing head and the connector body is provided.

[0010] As a preferred solution, the inner wall of the upper pre-pressing sleeve is a smooth surface structure.

[0011] As a preferred solution, a gold plating layer is provided on the surface of the crown spring, and nickel plating layers are provided on the outer side of the connector body and the upper pre-pressing sleeve.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The utility model mainly solves the following difficulties for the pre-pressing connector applied on the existing electronic pen, reduces costs, reduces the production difficulty of products, and reduces the defective rate;

[0014] 1. Abandon the screw-thread matching connection, adopt the gold-plated crown spring design, and the pen core does not need screw-thread processing, indirectly reducing the processing difficulty and cost of the pen core end;

[0015] 2. Solve the processing difficulty of the M1.2 screw thread of the pre-pressing sleeve and the risk of residues at the source. The appearance no longer requires the screw-thread rotary milling surface feature. While having high safety, the processing cost of the pre-pressing sleeve is directly reduced;

[0016] 3. Due to the small product size space, change from the traditional screw-thread matching connection to the crown spring insertion design. The angle transmission is more sensitive, and the product is convenient to plug and does not require rotational assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional structure diagram of the utility model;

[0018] Figure 2 is a structural schematic diagram of the utility model;

[0019] Figure 3 is a cross-sectional view of the utility model.

[0020] In the figure: 1. Connector body; 2. Upper pre-pressing sleeve; 3. Pre-pressing head; 4. Pre-pressing spring; 5. Lower pre-pressing sleeve; 6. Crown spring; 7. Insertion post; 8. Spring groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0022] Please refer to Figures 1-3 A connector for preloading in this embodiment includes a connector body 1. An upper preloading sleeve 2 is provided on the upper part of the connector body 1. A preloading head 3 is provided on the upper part of the upper preloading sleeve 2. The preloading head 3 is used to press the needle. The side part of the preloading head 3 is slidably connected to the inner wall of the upper preloading sleeve 2. A preloading spring 4 is provided inside the upper preloading sleeve 2. The surface of the preloading spring 4 is chrome-plated. A lower preloading sleeve 5 is provided on the lower part of the connector body 1. A crown spring 6 is provided in the lower preloading sleeve 5 for inserting and connecting the pen core at the front end of the electronic pen.

[0023] As Figure 1 、 3 shown, a plug post 7 is provided at the lower part of the preloading head 3. The preloading head 3 and the plug post 7 are integrally structured. The upper part of the preloading spring 4 is connected to the preloading head 3. The plug post 7 is inserted into the inside of the preloading spring 4, so that the preloading spring 4 is evenly stressed when pressed.

[0024] As Figure 1 、 3 shown, the middle part of the crown spring 6 is inwardly recessed. A plurality of spring grooves 8 are evenly formed in the middle part of the crown spring 6. By inserting the pen core at the front end of the electronic pen into the crown spring 6, the screw-threaded engagement connection is abandoned, and the traditional screw-threaded engagement connection is changed to a crown spring insertion design. The angle transmission is more sensitive, making the angle transmission more sensitive, and the product is convenient for insertion and does not require rotational assembly.

[0025] As Figure 2 、 3 shown, the preloading head and the upper plane of the connector body 1 are arranged, so that the preloading head 3 is evenly stressed when pressed.

[0026] As Figure 3 shown, the inner wall of the upper preloading sleeve 2 is a smooth surface structure, reducing the friction between the preloading head 3 and the upper preloading sleeve 2, making the preloading head 3 smoother when pressed.

[0027] As Figure 1 、 2, as shown in FIGS. 3, a gold plating layer is provided on the surface of the crown spring 6, the service life of the crown spring 6 is improved, and the contact between the crown spring 6 and the pen tip at the front end of the electronic pen is accurate and the resistance value is low. The insertion design of the crown spring 6 makes the angle transmission more sensitive. A nickel plating layer is provided on the outer side and the upper part of the connector body 1 and the preloading sleeve 2. The outermost nickel plating improves its oxidation resistance and scratch resistance.

[0028] In the specific implementation of this embodiment, through the structural settings of the present invention, the user inserts the pen tip at the front end of the electronic pen into the crown spring 6 in the lower preloading sleeve 5 and fixes it through the crown spring 6. The traditional preloading connector is re-developed and designed, so as to mainly solve the following difficulties: reducing costs, reducing the production difficulty of products, reducing the defective rate, abandoning the screw thread mating connection, adopting the gold-plated crown spring design, and the pen tip does not require screw thread processing, indirectly reducing the processing difficulty and cost of the pen tip end. From the source, it also solves the processing difficulty of the M1.2 screw thread of the preloading sleeve and the residue risk. The appearance no longer requires the screw thread rotary milling surface feature. While having high safety, it directly reduces the processing cost of the preloading sleeve. Due to the small size space of the product, the traditional screw thread mating connection is changed to the crown spring insertion design, the angle transmission is more sensitive, and the product is convenient to plug and does not require rotary assembly.

[0029] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pre-pressing connector, comprising a connector body (1), characterized in that: An upper pre-stress sleeve (2) is arranged at the upper part of the connector body (1), a pre-stress head (3) is arranged at the upper part of the upper pre-stress sleeve (2), the side of the pre-stress head (3) is slidably connected to the inner wall of the upper pre-stress sleeve (2), a pre-stress spring (4) is arranged inside the upper pre-stress sleeve (2), and a lower pre-stress sleeve (5) is arranged at the lower part of the connector body (1), and a crown spring (6) is arranged in the lower pre-stress sleeve (5).

2. A pre-pressing connector according to claim 1, characterized in that: The lower part of the pre-stressing head (3) is provided with an insertion column (7), the pre-stressing head (3) and the insertion column (7) are arranged as an integrated structure, the upper part of the pre-stressing spring (4) is connected to the pre-stressing head (3), and the insertion column (7) is inserted into the interior of the pre-stressing spring (4).

3. A pre-pressing connector according to claim 1, characterized in that: The middle part of the crown spring (6) is arranged inwardly, and a plurality of spring grooves (8) are evenly arranged in the middle part of the crown spring (6).

4. A pre-pressing connector according to claim 1, characterized in that: The pre-pressing head (3) and the upper plane of the connector body (1) are arranged.

5. A pre-pressing connector according to claim 1, characterized in that: The inner wall of the upper pre-pressing sleeve (2) is a smooth structure.

6. A pre-pressing connector according to claim 1, characterized in that: The surface of the crown spring (6) is provided with a gold-plated layer, and the outer side of the connector body (1) and the upper pre-pressing sleeve (2) are provided with a nickel-plated layer.

Images