Battery car brake handle integrated pull switch

Abstract

The utility model relates to the technical field of electromobile brake handles, in particular to an electromobile brake handle integrated pull switch, which comprises a rear end and a front end, the rear end and the front end are fixedly connected with each other, a contact is inserted into one end, far away from the rear end, of the front end, one end of the contact is fixedly connected with a connector, and the connector is inserted into the front end. The contact is sleeved with a sheath, one end of the sheath is clamped to the inner wall of the front end, the inner wall of the end, away from the rear end, of the front end is clamped with a sealing ring, the sheath is sleeved with the sealing ring, and the sealing ring is in extrusion fit with one end of the sheath. The contact is inserted into the front end, the sheath is sleeved outside the contact, the contact and the sheath are sealed, the contact is limited on the front end by the sheath, the sealing ring is matched, the sealing ring is clamped into the front end and extrudes one end of the sheath, so that the sheath and the front end are sealed and waterproof, the contact and the front end are sealed and waterproof, and sliding of the contact is not affected. Multiple structures are compactly connected to form an integrated pull switch, and the waterproof performance is good.

Description

Technical Field

[0001] This utility model relates to the field of electric bicycle brake levers, specifically an integrated cable switch for electric bicycle brake levers. Background Technology

[0002] The electric bicycle brake lever is a part installed on the handlebars of the electric bicycle. It is used in conjunction with the handlebars to control the braking of the electric bicycle. The cable switch is a part installed on the brake lever.

[0003] Existing electric bicycle brake lever pull switches, such as the brake lever disconnect switch proposed in patent application number "CN200620102989.8", include a base, a cover, and two sets of contacts. The base and the cover are fixedly connected, and the two contacts are snapped into slots on both sides of the base. A reset spring is provided between the button and the conduction rod, which improves the service life and actual power carrying capacity of the brake lever disconnect switch and has higher safety and reliability than traditional products.

[0004] However, the existing technology has defects. The sealing of the connection between the button and the cover is poor, and the waterproofing between the button and the cover is poor, which makes it easy for water to enter the pull switch and damage the parts. Therefore, an integrated pull switch for electric vehicle brake lever is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide an integrated cable switch for electric vehicle brake levers to solve the problems mentioned in the background art.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] An integrated pull-cord switch for electric bicycle brake lever includes a rear end and a front end, which are fixedly connected to each other. A contact is inserted into the end of the front end away from the rear end, and a connector is fixedly connected to one end of the contact. The connector is inserted into the interior of the front end. A protective sleeve is fitted over the contact. One end of the protective sleeve is snapped into the inner wall of the front end. A sealing ring is snapped into the inner wall of the end of the front end away from the rear end. The sealing ring is fitted over the protective sleeve, and the sealing ring is pressed against one end of the protective sleeve.

[0008] Preferably, the front end has a cavity inside, the connector is located in the cavity, and a spring is engaged between the end of the connector and the inner wall of the cavity. The spring is pressed between the connector and the inner wall of the cavity for elastic extension and contraction of the contact.

[0009] Preferably, the sheath is shaped like a frustum of a cone, and an annular groove is provided on the side wall of the contact. The small-diameter end of the sheath is engaged in the annular groove, and a retaining ring is fixed to the large-diameter end of the sheath, which is engaged with the inner wall of the front end.

[0010] Preferably, a groove is provided on the side wall of the front end away from the rear end, and a protrusion is fixedly connected to the side wall of the sealing ring. The protrusion engages with the groove, and the sealing ring and the retaining ring are squeezed together.

[0011] Preferably, the connector sidewall is fixed with two sets of locking blocks, and a U-shaped plate is locked on both sets of locking blocks. A protrusion is fixed to the lower end of the U-shaped plate, and the protrusion abuts against the front inner wall.

[0012] Preferably, both the front and rear sidewalls are provided with grooves, and multiple sets of grooves are provided to increase the friction on the side of the switch. A spring plate is fixedly connected to the front sidewall.

[0013] The beneficial effects of this utility model are:

[0014] This utility model features a contact inserted into the front end, with an outer sheath. The contact and sheath are sealed together, and the sheath limits the contact to the front end. A sealing ring is then inserted into the front end, squeezing one end of the sheath to create a waterproof seal between the sheath and the front end. Therefore, the contact and the front end are sealed and waterproof without affecting the contact's sliding. The multiple structures are tightly connected to form an integrated pull-cord switch with excellent waterproof performance. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the front-end structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the rear structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the contact structure of this utility model;

[0021] Figure 6 This is a schematic diagram of the front cross-sectional structure of this utility model;

[0022] The attached figures are labeled as follows:

[0023] 1. Rear end; 2. Front end; 4. Groove; 6. Spring plate; 8. Slot; 9. Contact; 10. Connector; 11. Locking block; 12. U-shaped plate; 14. Sheath; 15. Sealing ring; 16. Protrusion; 17. Snap ring; 19. Raised; 20. Annular groove; 21. Cavity. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] A type of pull-cable switch integrated with the brake lever of an electric bicycle, such as Figures 1-6 As shown, it includes a rear end 1 and a front end 2, which are fixedly connected to each other. A contact 9 is inserted into the end of the front end 2 away from the rear end 1. A connector 10 is fixedly connected to one end of the contact 9 and inserted into the interior of the front end 2. A protective sleeve 14 is fitted over the contact 9. One end of the protective sleeve 14 is snapped into the inner wall of the front end 2. A sealing ring 15 is snapped into the inner wall of the end of the front end 2 away from the rear end 1. The sealing ring 15 is fitted over the protective sleeve 14 and is pressed into one end of the protective sleeve 14.

[0026] The sheath 14 is an elastic structure and will not prevent the contact 9 from sliding. The end of the contact 9 is a friction stone.

[0027] The contact 9 is inserted into the front end 2, and a protective sleeve 14 is fitted on the outside. The contact 9 and the protective sleeve 14 are sealed together. The protective sleeve 14 limits the contact 9 to the front end 2. Then, with the cooperation of the sealing ring 15, the sealing ring 15 is inserted into the front end 2 and squeezes one end of the protective sleeve 14, so that the protective sleeve 14 and the front end 2 are sealed and waterproof. Therefore, the contact 9 and the front end 2 are sealed and waterproof, and the sliding of the contact 9 is not affected. The multiple structures are tightly connected to form an integrated pull-cord switch with good waterproof performance.

[0028] like Figure 6 As shown, the front end 2 has a cavity 21 inside, the connector 10 is located in the cavity 21, and a spring is engaged between the end of the connector 10 and the inner wall of the cavity 21. The spring is pressed between the connector 10 and the inner wall of the cavity 21 for the elastic extension and retraction of the contact 9.

[0029] When contact 9 is pressed, contact 9 slides and extends, compressing the spring, which facilitates the reset when contact 9 is not pressed. One end of the spring is engaged with connector 10, and the other end abuts or engages with the inner wall of cavity 21.

[0030] like Figure 1 , Figure 2 , Figure 5 , Figure 6 As shown, the sheath 14 is shaped like a frustum of a cone, and an annular groove 20 is provided on the side wall of the contact 9. The small diameter end of the sheath 14 is engaged in the annular groove 20, and a retaining ring 17 is fixedly connected to the large diameter end of the sheath 14. The retaining ring 17 is engaged with the inner wall of the front end 2.

[0031] The small-diameter end of the cone-shaped device is sealed to the contact 9, while the large-diameter end is snapped into the front end 2, thus sealing the contact 9.

[0032] like Figure 1 , Figure 2 , Figure 5 , Figure 6 As shown, a slot 8 is provided on the side wall of the front end 2 away from the rear end 1, and a protrusion 16 is fixedly connected to the side wall of the sealing ring 15. The protrusion 16 is engaged with the slot 8, and the sealing ring 15 is pressed and engaged with the retaining ring 17.

[0033] The sealing ring 15 is engaged with the groove 8 on the side wall of the front end 2 via the protrusion 16, so that the sealing ring 15 is engaged with the front end 2. The sealing ring 15 squeezes the retaining ring 17, so that the front end 2 is sealed with the retaining ring 17.

[0034] like Figure 2 , Figure 5 , Figure 6 As shown, two sets of locking blocks 11 are fixed to the side wall of the connector 10, and a U-shaped plate 12 is locked to both sets of locking blocks 11. A protrusion 19 is fixed to the lower end of the U-shaped plate 12, and the protrusion 19 abuts against the inner wall of the front end 2.

[0035] The U-shaped plate 12 is snapped into the connector 10. When the connector is located inside the front end 2, the protrusion 19 conducts electricity by contacting the conductive sheet inside the front end 2. The conductive sheet is a necessary structure for the pull-cord switch. The specific installation method or shape will not be elaborated here.

[0036] like Figure 1 As shown, both the front end 2 and the rear end 1 have grooves 4 on their side walls. Multiple sets of grooves 4 are provided to increase the friction on the side of the switch. A spring plate 6 is fixedly connected to the side wall of the front end 2.

[0037] The groove 4 increases the friction on the side wall of the pull switch, and the spring plate 6 engages with other structures of the brake lever, making it easy to install the pull switch.

[0038] The working principle of the integrated pull-cable switch for electric vehicle brake lever provided by this utility model is as follows:

[0039] The contact 9 is inserted into the front end 2, and a protective sleeve 14 is fitted on the outside. The contact 9 and the protective sleeve 14 are sealed together. The protective sleeve 14 limits the contact 9 to the front end 2. Then, with the cooperation of the sealing ring 15, the sealing ring 15 is inserted into the front end 2 and squeezes one end of the protective sleeve 14, so that the protective sleeve 14 and the front end 2 are sealed and waterproof. Therefore, the contact 9 and the front end 2 are sealed and waterproof, and the sliding of the contact 9 is not affected. The multiple structures are tightly connected to form an integrated pull-cord switch with good waterproof performance.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A pull-cable switch integrated with the brake lever of an electric bicycle, comprising a rear end (1) and a front end (2), characterized in that, The rear end (1) and the front end (2) are fixedly connected to each other. A contact (9) is inserted into the end of the front end (2) away from the rear end (1). A connector (10) is fixedly connected to one end of the contact (9). The connector (10) is inserted into the interior of the front end (2). A protective sleeve (14) is fitted on the outside of the contact (9). One end of the protective sleeve (14) is snapped into the inner wall of the front end (2). A sealing ring (15) is snapped into the inner wall of the end of the front end (2) away from the rear end (1). The sealing ring (15) is fitted on the outside of the protective sleeve (14), and the sealing ring (15) is squeezed into one end of the protective sleeve (14).

2. The integrated pull-cable switch for electric vehicle brake lever according to claim 1, characterized in that, The front end (2) has a cavity (21) inside, the connector (10) is located in the cavity (21), and a spring is engaged between the end of the connector (10) and the inner wall of the cavity (21). The spring is pressed between the connector (10) and the inner wall of the cavity (21) for the elastic extension and retraction of the contact (9).

3. The integrated pull-cable switch for electric vehicle brake lever according to claim 1, characterized in that, The sheath (14) is shaped like a frustum of a cone. The side wall of the contact (9) is provided with an annular groove (20). The small diameter end of the sheath (14) is engaged in the annular groove (20). The large diameter end of the sheath (14) is fixed with a retaining ring (17). The retaining ring (17) is engaged with the inner wall of the front end (2).

4. The integrated pull-cable switch for electric vehicle brake lever according to claim 3, characterized in that, The front end (2) is provided with a slot (8) on the side wall away from the rear end (1). A protrusion (16) is fixed to the side wall of the sealing ring (15). The protrusion (16) is engaged with the slot (8), and the sealing ring (15) is pressed together with the retaining ring (17).

5. The integrated pull-cable switch for electric vehicle brake lever according to claim 1, characterized in that, The connector (10) has two sets of locking blocks (11) fixed to its side wall. A U-shaped plate (12) is locked to both sets of locking blocks (11). A protrusion (19) is fixed to the lower end of the U-shaped plate (12). The protrusion (19) abuts against the inner wall of the front end (2).

6. The integrated pull-cable switch for electric vehicle brake lever according to claim 1, characterized in that, The front end (2) and the rear end (1) sidewalls are provided with grooves (4), and multiple sets of grooves (4) are provided to increase the friction on the side of the switch. A spring plate (6) is fixed to the front end (2) sidewall.

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