A gravity self-locking device for a new energy charging pile

Abstract

This utility model discloses a gravity self-locking device for a new energy vehicle charging pile, relating to the technical field of new energy vehicle charging equipment. The utility model includes a gun body and a cable. One end of the gun body is fixedly connected to the cable, and the other end is fixedly connected to the muzzle. A handle is fixedly connected to the circumferential surface of the gun body, and a self-locking device is provided on the circumferential surface of the muzzle. This utility model achieves automatic locking and stable connection between the charging gun and the charging pile through a coordinated design of gravity drive and mechanical transmission. When the muzzle is inserted into the charging pile, the counterweight on the transmission ring, under the action of gravity, drives the transmission rod to slide down, pushing the impact rod to move along the guide groove, causing the locking ring to drive the gripper to rotate and engage with the protrusion, forming a mechanical self-lock. This design utilizes gravity instead of an additional power source, completing the locking without manual operation, solving the problems of easy loosening and cumbersome operation of traditional manual locking.

Description

Technical Field

[0001] This utility model belongs to the technical field of new energy vehicle charging equipment, and in particular relates to a gravity self-locking device for a new energy charging pile. Background Technology

[0002] With the popularization of new energy vehicles, the demand for charging piles as core infrastructure has surged. However, existing charging guns have motor drive or electromagnetic locking in actual use, which increases energy consumption and manufacturing costs. Furthermore, electronic components are prone to failure in high temperature and humid environments, resulting in decreased reliability. Traditional charging guns mostly rely on manual tightening or buckle locking, which is cumbersome to operate and prone to loosening.

[0003] In existing technologies, although locking is achieved through the cooperation of springs and buckles, manual pressing is still required to unlock, which does not solve the problem of ease of operation. Therefore, we propose a gravity self-locking device for new energy charging piles. Utility Model Content

[0004] The purpose of this utility model is to provide a gravity self-locking device for new energy charging piles. By setting a gravity-driven mechanical self-locking structure on the circumference of the gun body, and cooperating with an automatically locking protective device, the problems of unreliable connection, poor protective performance and low operating efficiency in the prior art are solved.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is a gravity self-locking device for a new energy charging pile, comprising: a gun body and a cable, one end of the gun body is fixedly connected to the cable, the other end of the gun body is fixedly connected to the muzzle, a handle is fixedly connected to the circumferential surface of the gun body, and a self-locking device is provided on the circumferential surface of the muzzle.

[0007] The self-locking device includes a housing, one end of which is fixedly connected to the end of the gun body near the muzzle. A transmission ring is slidably connected to the inner wall of the housing, and a transmission rod is fixedly connected to the side of the transmission ring. One end of the transmission rod passes through the other end of the housing, and the passing part is slidably connected. A guide groove is formed on the circumferential surface of the housing. A locking ring is slidably connected to the circumferential surface of the housing. A gripper is rotatably connected to the circumferential surface of the locking ring. A strike rod is fixedly connected to the inner wall of the locking ring, and the circumferential surface of the strike rod is slidably connected to the inner wall of the guide groove. A protrusion is fixedly connected to the circumferential surface of the housing.

[0008] Furthermore, one end of the gripper is located on the displacement trajectory of the protrusion, and one end of the guide groove is located at one end of the transmission rod. With one end of the gripper located on the displacement trajectory of the protrusion, when the transmission rod pushes the impact rod to slide along the guide groove, the protrusion can accurately press the gripper, causing it to rotate and clamp the charging pile interface, thus achieving a self-locking function.

[0009] Furthermore, a counterweight is fixedly connected to the circumferential surface of the transmission ring, and a counterweight is fixedly connected to the circumferential surface of the locking ring. The transmission ring and locking ring are respectively equipped with counterweight one and counterweight two, utilizing the effect of gravity to enhance the sensitivity and stability of the self-locking device: when the gun nozzle is inserted into the charging pile, counterweight one drives the transmission ring to slide down, ensuring the clamping force of the grippers.

[0010] Furthermore, the clamping jaws, transmission rods, guide grooves, and impact rods are all provided in pairs, and are symmetrically arranged along the vertical central axis of the muzzle. The symmetrical distribution of the clamping jaws, transmission rods, guide grooves, and impact rods along the vertical central axis of the muzzle forms a double-support clamping structure, ensuring uniform force distribution between the muzzle and the charging pile interface.

[0011] Furthermore, a self-locking protective device is provided on the side of the gun body. The self-locking protective device includes a connecting seat, which is fixedly connected to the circumferential surface of the gun body. A nylon rope is fixedly connected to the side of the connecting seat, and a muzzle guard is fixedly connected to one end of the nylon rope. A clamping groove is provided on the side of the muzzle guard.

[0012] Furthermore, a sealing ring is provided at the bottom of the muzzle guard, and the inner diameter of the muzzle guard is larger than the diameter of the muzzle. The sealing ring at the bottom of the muzzle guard is made of elastic material, which fits tightly with the charging pile interface and can effectively block dust and rainwater.

[0013] Furthermore, there are two clamping slots, both symmetrically arranged along the vertical central axis of the muzzle, and the slots are located on the displacement trajectory of the gripper. The two symmetrically distributed slots match the displacement trajectory of the gripper, allowing the gripper to precisely engage with the slots when the muzzle guard is fitted onto the muzzle, forming a mechanical lock.

[0014] This utility model has the following beneficial effects:

[0015] 1. This utility model's self-locking device achieves automatic locking and stable connection between the charging gun and the charging pile through a coordinated design of gravity drive and mechanical transmission. When the gun nozzle is inserted into the charging pile, the counterweight on the transmission ring, under the action of gravity, drives the transmission rod to slide down, pushing the impact rod along the guide groove, causing the locking ring to drive the gripper to rotate and engage with the protrusion, forming a mechanical self-lock. This design utilizes gravity instead of an additional power source, completing the locking without manual operation. The symmetrically distributed double gripper structure ensures uniform force on the interface, avoiding one-sided wear, ensuring charging stability and safety, and solving the problems of easy loosening and cumbersome operation of traditional manual locking.

[0016] 2. The self-locking protective device of this utility model constructs a dustproof and waterproof protection system through the combination design of a muzzle guard and a sealing ring. The protective guard connected by a nylon rope can move with the gun body, and the bottom sealing ring fits tightly with the muzzle, effectively preventing rainwater, dust and foreign objects from entering the muzzle and avoiding corrosion or short circuits in the internal circuitry.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a partial structural schematic diagram of the three-dimensional self-locking device of this utility model;

[0021] Figure 3 This is a partial structural schematic diagram of the three-dimensional self-locking device of this utility model;

[0022] Figure 4 This is a partial structural schematic diagram of the three-dimensional self-locking device of this utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the three-dimensional muzzle guard of this utility model.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] 1. Gun body; 2. Cable; 3. Muzzle; 4. Handle; 5. Self-locking device; 501. Device housing; 502. Transmission ring; 503. Transmission rod; 504. Guide groove; 505. Locking ring; 506. Gripper; 507. Strike rod; 508. Protrusion; 6. Self-locking protective device; 601. Connecting seat; 602. Nylon rope; 603. Muzzle guard; 604. Grip groove. Detailed Implementation

[0026] 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.

[0027] Please see Figures 1-5 This utility model is a gravity self-locking device for a new energy charging pile, including: a gun body 1 and a cable 2. One end of the gun body 1 is fixedly connected to the cable 2, and the other end of the gun body 1 is fixedly connected to the muzzle 3. A handle 4 is fixedly connected to the circumferential surface of the gun body 1, and a self-locking device 5 is provided on the circumferential surface of the muzzle 3.

[0028] The self-locking device 5 includes a device housing 501. One end of the device housing 501 is fixedly connected to the end of the gun body 1 near the muzzle 3. A transmission ring 502 is slidably connected to the inner wall of the device housing 501. A transmission rod 503 is fixedly connected to the side of the transmission ring 502. One end of the transmission rod 503 passes through the other end of the device housing 501, and the passing part is slidably connected. A guide groove 504 is provided on the circumferential surface of the device housing 501. A locking ring 505 is slidably connected to the circumferential surface of the device housing 501. A gripper 506 is rotatably connected to the circumferential surface of the locking ring 505. A strike rod 507 is fixedly connected to the inner wall of the locking ring 505. The circumferential surface of the strike rod 507 is slidably connected to the inner wall of the guide groove 504. A protrusion 508 is fixedly connected to the circumferential surface of the device housing 501.

[0029] As shown in the figure, one end of the gripper 506 is located on the displacement trajectory of the protrusion 508, and one end of the guide groove 504 is located on one end of the transmission rod 503. When the transmission rod 503 pushes the impact rod 507 to slide along the guide groove 504, the protrusion 508 can accurately press the gripper 506, causing it to rotate and clamp the charging pile interface, thus achieving a self-locking function.

[0030] As shown in the figure, a counterweight is fixedly connected to the circumferential surface of the transmission ring 502, and a counterweight is fixedly connected to the circumferential surface of the locking ring 505. The transmission ring 502 and the locking ring 505 are respectively equipped with counterweight one and counterweight two, utilizing the effect of gravity to enhance the sensitivity and stability of the self-locking device 5: when the gun muzzle 3 is inserted into the charging pile, counterweight one drives the transmission ring 502 to slide down, ensuring the clamping force of the gripper 506.

[0031] As shown in the figure, there are two of each of the following components: gripper 506, transmission rod 503, guide groove 504, and impact rod 507. These components are symmetrically arranged along the vertical central axis of the muzzle 3. The symmetrical distribution of these components along the vertical central axis of the muzzle 3 forms a double-support clamping structure, ensuring uniform force distribution between the muzzle 3 and the charging pile interface.

[0032] As shown in the figure, a self-locking protective device 6 is provided on the side of the gun body 1. The self-locking protective device 6 includes a connecting seat 601, which is fixedly connected to the circumferential surface of the gun body 1. A nylon rope 602 is fixedly connected to the side of the connecting seat 601. One end of the nylon rope 602 is fixedly connected to a muzzle guard 603. A clamping groove 604 is provided on the side of the muzzle guard 603.

[0033] As shown in the figure, a sealing ring is provided at the bottom of the muzzle guard 603, and the inner diameter of the muzzle guard 603 is larger than the diameter of the muzzle 3. The sealing ring at the bottom of the muzzle guard 603 is made of elastic material and fits tightly with the charging pile interface, effectively blocking dust and rainwater.

[0034] As shown in the figure, there are two clamping slots 604, both symmetrically arranged along the vertical central axis of the muzzle 3. The clamping slots 604 are located on the displacement trajectory of the gripper 506. The two symmetrically distributed clamping slots 604 match the displacement trajectory of the gripper 506. When the muzzle shield 603 is fitted onto the muzzle 3, the gripper 506 can accurately engage with the clamping slots 604, forming a mechanical lock.

[0035] A specific application of this embodiment is as follows: When the user holds the handle 4 of the gun body 1 and inserts the gun muzzle 3 into the charging pile interface, the gravity self-locking device 5 and the self-locking protection device 6 work together to achieve automatic locking and protection. When the gun muzzle 3 is inserted into the charging pile interface, the counterweight on the transmission ring 502 slides downward under the action of gravity, driving the transmission rod 503 to move axially along the outer shell 501 of the device. The transmission rod 503 pushes the impact rod 507 to move along the trajectory of the guide groove 504, so that the locking ring 505 rotates synchronously. The two side grippers 506 rotate with the locking ring 505, and their ends are engaged with the protrusions 508 of the outer shell 501 of the device to form a mechanical engagement.

[0036] After charging is complete and the gun body 1 is removed, the muzzle guard 603 is pulled down from the connector 601 via the nylon rope 602 and fitted onto the outside of the muzzle 3. At this time, the clamp 506 returns to its original position along with the locking ring 505, and its end precisely engages with the clamping groove 604 on the side of the guard, forming a mechanical lock. The sealing ring at the bottom of the guard fits tightly against the muzzle 3, preventing dust and rainwater from entering.

[0037] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0038] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A gravity self-locking device of a new energy charging pile, comprising a gun body (1) and a cable (2), characterized in that: One end of the gun body (1) is fixedly connected to a cable (2), the other end of the gun body (1) is fixedly connected to a muzzle (3), a handle (4) is fixedly connected to the circumferential surface of the gun body (1), and a self-locking device (5) is provided on the circumferential surface of the muzzle (3). The self-locking device (5) includes a device housing (501), one end of which is fixedly connected to the end of the gun body (1) near the muzzle (3). A transmission ring (502) is slidably connected to the inner wall of the device housing (501). A transmission rod (503) is fixedly connected to the side of the transmission ring (502). One end of the transmission rod (503) passes through the other end of the device housing (501), and the passing part is slidably connected. 1) A guide groove (504) is provided on the circumferential surface of the device housing (501). A locking ring (505) is slidably connected to the circumferential surface of the locking ring (505). A gripper (506) is rotatably connected to the circumferential surface of the locking ring (505). A strike rod (507) is fixedly connected to the inner wall of the locking ring (505). The circumferential surface of the strike rod (507) is slidably connected to the inner wall of the guide groove (504). A protrusion (508) is fixedly connected to the circumferential surface of the device housing (501).

2. The gravity self-locking device for a new energy charging pile according to claim 1, characterized in that, One end of the gripper (506) is located on the displacement trajectory of the protrusion (508), and one end of the guide groove (504) is located at one end of the transmission rod (503).

3. The gravity self-locking device for a new energy charging pile according to claim 2, characterized in that, The circumferential surface of the transmission ring (502) is fixedly connected to a counterweight, and the circumferential surface of the locking ring (505) is fixedly connected to a second counterweight.

4. The gravity self-locking device for a new energy charging pile according to claim 3, characterized in that, The number of each of the gripper (506), transmission rod (503), guide groove (504) and impact rod (507) is two, and they are all symmetrical to each other along the vertical central axis of the muzzle (3).

5. The gravity self-locking device for a new energy charging pile according to claim 4, characterized in that, The gun body (1) is provided with a self-locking protective device (6) on its side. The self-locking protective device (6) includes a connecting seat (601), which is fixedly connected to the circumferential surface of the gun body (1). A nylon rope (602) is fixedly connected to the side of the connecting seat (601), and a muzzle guard (603) is fixedly connected to one end of the nylon rope (602). A clamping groove (604) is provided on the side of the muzzle guard (603).

6. The gravity self-locking device for a new energy charging pile according to claim 5, characterized in that, The bottom of the muzzle guard (603) is provided with a sealing ring, and the inner wall diameter of the muzzle guard (603) is larger than the diameter of the muzzle (3).

7. The gravity self-locking device for a new energy charging pile according to claim 5, characterized in that, There are two clamping grooves (604), and they are symmetrical to each other along the vertical central axis of the muzzle (3). The clamping grooves (604) are located on the displacement trajectory of the gripper (506).

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