Guide mechanism and plug pin mounting device

Abstract

A guide mechanism (200) and a plug pin mounting device (1000). The guide mechanism is used for mounting a plug pin (2001) of a battery pack (2000), comprising a fixing block (50), a guide member (60) and a first elastic member (70), wherein the fixing block (50) has a first surface (51) and a second surface (52) opposite each other, and the fixing block (50) is provided with a guide hole (53) running through the first surface (51) and the second surface (52); the guide member (60) is accommodated in the guide hole (53), and the guide member (60) is provided with an assembly hole (61), the assembly hole (61) being used for placement of the plug pin (2001); and the first elastic member (70) is sleeved on the guide member (60) and accommodated in the guide hole (53), one end of the first elastic member (70) abutting against the fixing block (50), and the other end thereof abutting against the guide member (60). The guide member (60) is configured to extend out of the second surface (52) to mount the plug pin (2001); and when the guide member (60) extends out of the second surface (52), the first elastic member (70) is in a compressed state.

Description

Guide mechanism and pin installation device

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on November 23, 2023, with application number 202323179187.X and application name “Guide mechanism and nail installation device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present disclosure relates to the technical field of battery packs, and in particular to a guide mechanism and a plug installation device. Background Art

[0003] The battery pack is a common new energy storage device. It uses chemical cells to convert electrical energy into chemical energy for storage and, when needed, converts the chemical energy back into electrical energy for release. A battery pack consists of a casing, a cover, battery cells, and electrolyte. After assembly, the pack is stapled to seal the injection hole in the cover to prevent electrolyte leakage, ensure airtightness, and prevent the electrolyte from absorbing moisture from the air.

[0004] When multiple nails are installed at the same time, the guide components in the existing structure do not actively descend and tend to rebound prematurely during the nailing process, causing the nails to lose their guiding function and fail to be installed.

[0005] Summary of the Invention

[0006] The purpose of the present disclosure is to provide a guiding mechanism and a nail installation device to solve the problem that the guiding components in the existing structure do not actively descend and are prone to premature rebound during the nailing process, resulting in the nail losing its guiding function and nailing failure.

[0007] To achieve the purpose of this disclosure, the present disclosure provides the following technical solutions:

[0008] In a first aspect, the present disclosure provides a guide mechanism for installing a plugging nail of a battery pack, comprising: a fixing block having a first surface and a second surface opposite to each other, the fixing block defining a guide hole extending through the first surface and the second surface; a guide member received in the guide hole, the guide member defining an assembly hole for receiving the plugging nail;

[0009] A first elastic member is sleeved on the guide member and accommodated in the guide hole. One end of the first elastic member abuts against the fixed block, and the other end abuts against the guide member. The guide member is used to extend out of the second surface to install the pin. When the guide member extends out of the second surface, the first elastic member is in a compressed state.

[0010] In one embodiment, the assembly hole is rotationally symmetrical around an axis, and the cross-sectional shape of the assembly hole at any position of the axis is circular; the assembly hole includes a first hole segment, the first hole segment is close to the first surface, and the inner diameter of the first hole segment gradually decreases from the first surface to the second surface.

[0011] In one embodiment, the assembly hole also includes a second hole segment, which is connected to the end of the first hole segment facing away from the first surface, and the inner diameter of the second hole segment gradually decreases from the first surface to the second surface. In the longitudinal section of the guide member passing through the axis, the inner wall of the first hole segment is a straight line, and the inner wall of the second hole segment is a curve.

[0012] In one embodiment, the assembly hole further includes a third hole segment, the third hole segment is connected to an end of the second hole segment facing away from the first hole segment, and the first hole segment and the third hole segment are smoothly connected through the second hole segment.

[0013] In one embodiment, a first chamfer is provided between an end surface of the guide member close to the second surface and an inner wall of the assembly hole.

[0014] In one embodiment, a second chamfer is provided between the end surface of the guide member close to the second surface and the outer peripheral surface of the guide member.

[0015] In one embodiment, the inner peripheral wall of the guide hole is provided with a first limiting portion, and the outer peripheral surface of the guide member is provided with a second limiting portion, the first limiting portion and the second limiting portion are opposite to each other, the second limiting portion is located on the side of the first limiting portion facing away from the second surface, one end of the first elastic member abuts against the first limiting portion, and the other end abuts against the second limiting portion.

[0016] In one embodiment, the guide mechanism further includes a pressure plate, the pressure plate is provided with a mounting hole, the pressure plate is fixed to the first surface, the mounting hole is connected to the assembly hole, and the pressure plate is used to extend into the guide hole and limit the guide member.

[0017] In one embodiment, the pressure plate is provided with a mounting hole, the pressure plate is fixed to the first surface, the mounting hole is communicated with the assembly hole, and the pressure plate is used to extend into the guide hole and limit the guide member.

[0018] In a second aspect, the present disclosure further provides a nail installation device, comprising an installation mechanism and a guide mechanism described in any one of the various embodiments of the first aspect, wherein the installation mechanism is used to push the nail accommodated in the assembly hole from the first surface to the second surface.

[0019] In one embodiment, the mounting mechanism includes: a mounting cylinder having a receiving hole; a push rod passing through the receiving hole; a second elastic member sleeved on the push rod and received in the receiving hole, one end of the second elastic member abutting against the push rod, and the other end abutting against the mounting cylinder, and when the push rod is extended into the assembly hole, the second elastic member is in a compressed state.

[0020] In one embodiment, the mounting cylinder includes a cylinder body and an abutment portion, the cylinder body is provided with the receiving hole, and the abutment portion is connected to one end of the cylinder body close to the guide mechanism.

[0021] In one embodiment, the abutting portion is provided with a first limiting hole, the first limiting hole is communicated with the receiving hole, the push rod is passed through the first limiting hole, and the inner diameter of the first limiting hole is smaller than the outer diameter of the second elastic member.

[0022] In one embodiment, the mounting tube further includes a bearing, and the bearing is sleeved on the push rod, one end of the bearing abuts against the mounting tube, and the other end abuts against one end of the second elastic member.

[0023] The guiding mechanism disclosed in the present invention is provided with a fixed block, a guide member and an elastic member. The fixed block has a first surface and a second surface opposite to each other, and is provided with a guide hole passing through the first surface and the second surface. The guide member is accommodated in the guide hole, and is provided with an assembly hole for placing a plug nail. The first elastic member is sleeved on the guide member and accommodated in the guide hole. One end of the first elastic member abuts the fixed block, and the other end abuts the guide member. The guide member is used to extend out of the second surface to install the plug nail. When the guide member extends out of the second surface, the first elastic member is in a compressed state, so that before the plug nail enters the injection hole, the guide member abuts against the battery pack and is not easy to rebound prematurely, so that the guide member can provide continuous guiding effect for the plug nail until the plug nail is installed. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0025] FIG1 is a perspective cross-sectional view of a staple installation device according to an embodiment;

[0026] FIG2 is a plan cross-sectional view of a staple installation device according to an embodiment;

[0027] FIG3 is an exploded view of a mounting mechanism according to an embodiment;

[0028] FIG4 is a planar cross-sectional view of a guide mechanism according to an embodiment;

[0029] FIG5 is a plan cross-sectional view of a staple installation device according to another embodiment;

[0030] FIG. 6 is a planar cross-sectional view of a staple installation device according to another embodiment.

[0031] Explanation of Reference Numerals: 1000 - Nail Installation Device; 100 - Installation Mechanism; 10 - Installation Cylinder, 11 - Receiving Hole, 12 - Cylinder Body, 121 - Fixing Hole, 13 - Abutment Portion, 131 - First Limiting Hole, 14 - Snap Ring, 141 - Second Limiting Hole, 142 - Fixing Groove, 143 - Half Ring, 144 - Fixing Member, 15 - Bearing; 20 - Push Rod, 21 - Installation Structure, 22 - First Boss, 23 - Second Boss; 30 - Second Elastic Member; 40 - Limiting Sleeve, 41 - Through Hole; 200 - Guide Mechanism; 50-fixing block, 51-first surface, 52-second surface, 53-guide hole, 54-first limiting portion, 55-second connecting hole 60-guide member, 61-assembly hole, 62-axis, 63-first hole section, 64-second hole section, 65-third hole section, 66-first chamfer, 67-second chamfer, 68-second limiting portion; 70-first elastic member; 80-pressing plate, 81-mounting hole, 82-first connecting hole, 83-bolt; 2000-battery pack, 2001-pin, 2002-injection hole, 2003-positioning hole, 2004-sealing hole. DETAILED DESCRIPTION

[0032] The following will be combined with the accompanying drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the embodiments described are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present disclosure.

[0033] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may be an intermediate component. When a component is referred to as being "connected to" another component, it may be directly connected to the other component or there may be an intermediate component.

[0034] Unless otherwise defined, all technical and scientific terms used in this disclosure have the same meanings as commonly understood by those skilled in the art to which this disclosure belongs. The terms used in this disclosure and in the specification are for the purpose of describing specific embodiments only and are not intended to limit this disclosure. The term "and / or" as used in this disclosure includes any and all combinations of one or more of the relevant listed items.

[0035] The following describes some embodiments of the present disclosure in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features therein may be combined with each other.

[0036] Referring to Figures 1 and 2 , the present disclosure provides a staple installation device 1000 comprising an installation mechanism 100 and a guide mechanism 200 in an embodiment of the present disclosure. The installation mechanism 100 is used to push a staple 2001 received in an assembly hole 61 of the guide mechanism 200 from a first surface 51 of the guide mechanism 200 toward a second surface 52 of the guide mechanism 200 and install it into a liquid injection hole 2002 of a battery pack 2000. Multiple staple installation devices 1000 are provided, corresponding to multiple battery packs 2000. Multiple staple installation devices 1000 are correspondingly disposed at the liquid injection holes 2002 of multiple battery packs 2000, enabling simultaneous production of multiple battery packs 2000, achieving mass production and improving production speed and efficiency.

[0037] Referring to Figure 2 , the liquid injection hole 2002 includes a positioning hole 2003 and a sealing hole 2004. The positioning hole 2003 communicates with the sealing hole 2004. The bottom wall of the positioning hole 2003 is used to abut against the guide mechanism 200, and the sealing hole 2004 is used to install the plug 2001. In one embodiment, the plug 2001 can be made of a material with good sealing properties and is not easily aged, specifically rubber, plastic, and aluminum alloy, without limitation.

[0038] Referring to Figure 2 , the installation mechanism 100 includes a mounting tube 10, a push rod 20, and a second elastic member 30. The mounting tube 10 defines a receiving hole 11, through which the push rod 20 is inserted. The second elastic member 30 is sleeved over the push rod 20 and received within the receiving hole 11. One end of the second elastic member 30 abuts the push rod 20, while the other end abuts the mounting tube 10. When the push rod 20 extends into the assembly hole 61, the second elastic member 30 is compressed. The mounting tube 10 accommodates the push rod 20 and the second elastic member 30 and pushes the guide mechanism 200 against the bottom wall of the positioning hole 2003 before the push rod 20 contacts the plug 2001. The push rod 20 drives the mounting tube 10 to move and install the plug 2001 into the sealing hole 2004. The second elastic member 30 transmits the force of the push rod 20 to the mounting tube 10 and prevents damage to the battery pack 2000 caused by excessive movement of the mounting tube 10.

[0039] In one embodiment, a mounting structure 21 is provided at one end of the push rod 20, distal from the guide mechanism 200. The mounting structure 21 is configured to be connected and fixed to a drive device (not shown) that drives the push rod 20. In one embodiment, a first boss 22 is provided on the outer circumferential surface of the mounting structure 21 to prevent excessive movement of the push rod 20 and damage to the battery pack 2000. In one embodiment, the drive device can be a pneumatic rod, a hydraulic rod, a linear motor, etc., without limitation.

[0040] In one embodiment, a second boss 23 is provided on the outer circumferential surface of the push rod 20. The second boss 23 is disposed between the mounting structure 21 and the guide mechanism 200. One end of the second boss 23 abuts the second elastic member 30, and the other end abuts the mounting tube 10. In one embodiment, the second boss 23 may extend along the circumference of the push rod 20, or there may be multiple second bosses 23, with the multiple second bosses 23 spaced apart along the circumference of the push rod 20, without limitation. In one embodiment, the push rod 20 may be made of a material that meets structural strength requirements, specifically an iron alloy, an aluminum alloy, or a non-metallic material, without limitation.

[0041] In one embodiment, the guide mechanism 200 further includes a limiting sleeve 40 having a through hole 41 formed therein. The mounting tube 10 and the push rod 20 are both received in the through hole 41, so that the mounting tube 10 and the push rod 20 can both move in a straight line, thereby preventing the mounting tube 10 or the push rod 20 from deviating from their movement direction and thus preventing the mounting mechanism 100 from damaging the guide mechanism 200. In one embodiment, the limiting sleeve 40 is connected to and fixed to a fixed base (not shown), which may be a gantry, a column, a ground platform, or the like, without limitation.

[0042] In one embodiment, the mounting tube 10 includes a barrel 12 and an abutment portion 13. The barrel 12 is provided with a receiving hole 11. The abutment portion 13 is connected to one end of the barrel 12 near the guide mechanism 200. The abutment portion 13 is provided with a first limiting hole 131. The first limiting hole 131 is connected to the receiving hole 11. The push rod 20 is passed through the first limiting hole 131. The inner diameter of the first limiting hole 131 is smaller than the outer diameter of the second elastic member 30. The abutment portion 13 is used to push the guide member 60 of the guide mechanism 200 to abut against the bottom wall of the positioning hole 2003. In one embodiment, the barrel 12 and the abutment portion 13 can be an integral structure, or can be connected and fixed by welding, clamping, and screwing, without limitation. In one embodiment, the mounting tube 10 can be made of a material that meets the structural strength requirements, specifically iron alloy, aluminum alloy, and non-metallic materials, without limitation.

[0043] In one embodiment, the mounting barrel 10 further includes a snap ring 14, which is disposed at an end of the barrel 12 away from the abutment portion 13 and abuts against the second boss 23. The snap ring 14 encloses a second limiting hole 141, which is in communication with the receiving hole 11, and the push rod 20 is inserted into the second limiting hole 141.

[0044] In one embodiment, referring to FIG3 , a fixing groove 142 is defined on the outer peripheral wall of the snap ring 14, and a plurality of fixing holes 121 are defined on the barrel 12. The snap ring 14 includes two half-rings 143 and a plurality of fixing members 144. When the push rod 20 and the second elastic member 30 are installed in the receiving hole 11, the two half-rings 143 are correspondingly placed in the receiving hole 11 and abut against the second boss 23. The plurality of fixing members 144 extend one by one into the fixing holes 121 and the fixing grooves 142 and are connected and fixed to the fixing grooves 142, thereby relatively fixing the snap ring 14 in the axial direction of the mounting barrel 10. In one embodiment, the fixing members 144 can be bolts 83, studs, rivets, etc., without limitation.

[0045] By providing the second boss 23 on the push rod 20 and providing the abutment portion 13 and the snap ring 14 on the mounting tube 10 , the push rod 20 can be fixed in the radial direction of the mounting tube 10 to prevent the push rod 20 from escaping from the mounting tube 10 .

[0046] In one embodiment, the connection between the outer peripheral surface of the cylinder 12 and the end face of the cylinder 12 is chamfered. In one embodiment, the connection between the inner wall surface of the receiving hole 11 and the end face of the cylinder 12 is chamfered. In one embodiment, the connection between the abutment portion 13 and the cylinder 12 is also chamfered. In one embodiment, the connection between the inner wall surface of the first limiting hole 131 and the end face of the limiting portion is also chamfered. By applying chamfering and rounding treatments to the cylinder 12 and the limiting portion, the sharp parts of the cylinder 12 and the limiting portion will not cause damage to other parts and operators.

[0047] In one embodiment, the second elastic member 30 can be received in the through hole 41 of the aforementioned limiting sleeve 40 and positioned between the mounting tube 10 and the mounting structure 21, without limitation. In one embodiment, the second elastic member 30 can be a leaf spring, a coil spring, a torsion bar spring, a gas spring, a rubber spring, etc., without limitation.

[0048] The nail installation device 1000 realizes the installation of the nail 2001 by adopting the installation mechanism 100 and the guide mechanism 200 in the embodiment of the present disclosure. At the same time, the guide mechanism 200 is in contact with the battery pack 2000 before the nail 2001 enters the injection hole 2002, and can return to its original position after the installation of the nail 2001 is completed. The guide mechanism 200 is not easy to rebound prematurely, so that the guide mechanism 200 can provide continuous guiding effect for the nail 2001 until the nailing process is completed, thereby preventing the nail 2001 from deflecting and falling off, and improving the nail yield.

[0049] 2 and 3 , the mounting cylinder 10 further includes a bearing 15, which is sleeved on the push rod 20. One end of the bearing 15 abuts against the abutment portion 13, and the other end abuts against one end of the second elastic member 30. In one embodiment, the bearing 15 can be a sliding bearing 15, a ball bearing 15, a cylindrical bearing 15, a tapered bearing 15, etc., without limitation.

[0050] By providing a bearing 15, the bearing 15 is sleeved on the push rod 20, one end of the bearing 15 abuts against the abutting portion 13, and the other end abuts against one end of the second elastic member 30, so that no sliding friction occurs between the push rod 20 and the mounting tube 10, preventing the push rod 20 from driving the mounting tube 10 to rotate, and reducing the mechanical loss of the push rod 20 and the mounting tube 10.

[0051] Referring to FIG4 , the present disclosure further provides a guide mechanism 200 for installing a plug 2001 of a battery pack 2000, comprising a fixing block 50, a guide member 60, and a first elastic member 70. The fixing block 50 has a first surface 51 and a second surface 52 facing each other, and the fixing block 50 is provided with a guide hole 53 that passes through the first surface 51 and the second surface 52. The guide member 60 is received in the guide hole 53, and the guide member 60 is provided with an assembly hole 61 for receiving the plug 2001. The first elastic member 70 is sleeved on the guide member 60 and received in the guide hole 53. One end of the first elastic member 70 abuts against the fixing block 50, and the other end abuts against the guide member 60. The guide member 60 is used to extend from the second surface 52 to install the plug 2001, and does not enhance the guiding effect of the plug 2001. When the guide member 60 extends from the second surface 52, the first elastic member 70 is in a compressed state.

[0052] In one embodiment, the connection between the outer peripheral wall of the guide member 60 and the end surface of the guide member 60 near the first surface 51 is chamfered. In one embodiment, the connection between the inner wall of the assembly hole 61 and the end surface of the guide member 60 near the first surface 51 is also chamfered. By using the chamfered corners on the end surface of the guide member 60 near the first surface 51, the sharp parts of the guide member 60 will not cause damage to other parts or operators.

[0053] In one embodiment, the axis of the guide hole 53 and the axis of the assembly hole 61 may or may not coincide, without limitation. The abutment portion 13 must be able to abut the guide member 60, and the push rod 20 must be able to extend into the assembly hole 61. In one embodiment, the cross-sectional shape of the guide hole 53 can be circular, rectangular, polygonal, etc., without limitation. Correspondingly, the cross-sectional shape of the outer periphery of the guide member 60 can also be circular, rectangular, polygonal, etc., without limitation.

[0054] In one embodiment, the fixing block 50 can be made of a material that meets structural strength requirements, specifically iron alloys, aluminum alloys, and non-metallic materials, without limitation. In one embodiment, the guide member 60 is made of a material similar to that of the fixing block 50, which is omitted for reference. In one embodiment, the first elastic member 70 can be made of a leaf spring, a coil spring, a torsion bar spring, a gas spring, a rubber spring, and the like, without limitation.

[0055] By setting a fixing block 50, a guide member 60 and an elastic member, the fixing block 50 has a first surface 51 and a second surface 52 opposite to each other, and a guide hole 53 is opened through the first surface 51 and the second surface 52, the guide member 60 is received in the guide hole 53, and an assembly hole 61 for placing the plug nail 2001 is opened, the first elastic member 70 is sleeved on the guide member 60 and received in the guide hole 53, one end of the first elastic member 70 abuts against the fixing block 50, and the other end abuts against the guide member 60, and the guide member 60 is used to extend out of the second surface 52 to The plug nail 2001 is installed and provided with a guiding function for the plug nail 2001. When the guide member 60 extends out of the second surface 52, the first elastic member 70 is in a compressed state, so that the guide member 60 abuts against the battery pack 2000 before the plug nail 2001 enters the injection hole 2002, and can return to its original position after the installation of the plug nail 2001 is completed. The guide member 60 is not easy to rebound prematurely, so that the guide member 60 can provide a continuous guiding function for the plug nail 2001 until the plug nail process is completed, thereby preventing the plug nail 2001 from deflecting and falling off, and improving the plug nail yield.

[0056] Please refer to Figure 4. The assembly hole 61 is rotationally symmetrical about an axis 62, and the cross-sectional shape of the assembly hole 61 at any position of the axis 62 is circular. The assembly hole 61 includes a first hole section 63. The first hole section 63 is close to the first surface 51, and the inner diameter of the first hole section 63 gradually decreases from the first surface 51 to the second surface 52.

[0057] In one embodiment, the cross-sectional shape of the assembly hole 61 at any position of the axis 62 may also be rectangular, polygonal, non-circular, etc., without limitation, so that the assembly hole 61 can be installed with pins 2001 of different shapes, thereby improving the practicality and applicability of the product.

[0058] By setting the first hole section 63 close to the first surface 51, the inner diameter of the first hole section 63 gradually decreases from the first surface 51 to the second surface 52, so that the pin 2001 can be quickly positioned when placed, shortening the placement time of the pin 2001 and improving production efficiency.

[0059] Please refer to Figure 4. The assembly hole 61 also includes a second hole segment 64. The second hole segment 64 is connected to the end of the first hole segment 63 facing away from the first surface 51. The inner diameter of the second hole segment 64 gradually decreases from the first surface 51 to the second surface 52. In the longitudinal section of the guide member 60 passing through the axis 62, the inner wall of the first hole segment 63 is a straight line, and the inner wall of the second hole segment 64 is a curve.

[0060] After the pin 2001 is placed into the assembly hole 61, the pin 2001 elastically abuts against the inner wall of the second hole section 64, so that static friction is generated between the pin 2001 and the inner wall of the second hole section 64, so that the pin 2001 can stay in the assembly hole 61 before being installed into the liquid inlet hole.

[0061] By setting a second hole section 64, the second hole section 64 is connected to the end of the first hole section 63 facing away from the first surface 51, and the inner diameter of the second hole section 64 gradually decreases from the first surface 51 to the second surface 52. In the longitudinal section of the guide member 60 passing through the axis 62, the inner wall of the first hole section 63 is a straight line, and the inner wall of the second hole section 64 is a curve, so that the first hole section 63 and the second hole section 64 are smoothly connected, preventing the plug nail 2001 from being scratched at the connection between the first hole section 63 and the second hole section 64 during assembly and installation, reducing the damage to the plug nail 2001 during installation, ensuring the good air tightness of the injection hole 2002, and improving the plug nail yield.

[0062] 4 , the assembly hole 61 further includes a third hole segment 65 , which is connected to an end of the second hole segment 64 facing away from the first hole segment 63 . The first hole segment 63 and the third hole segment 65 are smoothly connected via the second hole segment 64 .

[0063] In one embodiment, the inner diameter of the third hole section 65 remains constant from the first surface 51 to the second surface 52 , and may also gradually increase without limitation.

[0064] By setting the third hole segment 65, the third hole segment 65 is connected to the end of the second hole segment 64 facing away from the first hole segment 63, and the first hole segment 63 and the third hole segment 65 are smoothly connected through the second hole segment 64, so that the plug nail 2001 will not be scratched at the connection between the second hole segment 64 and the third hole segment 65 during the installation process, thereby reducing the damage to the plug nail 2001 during the installation process, ensuring the good air tightness of the injection hole 2002, and improving the plug nail yield.

[0065] Referring to FIG4 , a first chamfer 66 is defined between the end surface of the guide member 60 proximate the second surface 52 and the inner wall of the assembly hole 61, and / or a second chamfer 67 is defined between the end surface of the guide member 60 proximate the second surface 52 and the outer peripheral surface of the guide member 60. In one embodiment, in a longitudinal cross-section of the guide member 60 passing through the axis 62, the contour of the first chamfer 66 can be either a straight line or a curved line, without limitation. In one embodiment, the structure of the second chamfer 67 is similar to that of the first chamfer 66 and is therefore omitted for reference.

[0066] By providing a first chamfer 66 between the end face of the guide member 60 close to the second surface 52 and the inner wall of the assembly hole 61, and / or providing a second chamfer 67 between the end face of the guide member 60 close to the second surface 52 and the outer peripheral surface of the guide member 60, when the guide member 60 extends into the aforementioned positioning hole 2003 and abuts against the bottom wall surface of the positioning hole 2003, the sharp portion of the guide member 60 will not cause mechanical damage to the battery.

[0067] In addition, when the maximum radial dimension of the plug nail 2001 reaches the first chamfer 66, the plug nail 2001 recovers from the state of being squeezed by the third hole segment 65 to the state of not being squeezed, so that the sealing performance of the plug nail 2001 after being installed into the liquid inlet hole is not affected by the rebound of the plug nail 2001, thereby ensuring the good air tightness of the liquid injection hole 2002 and improving the plug nail yield.

[0068] Please refer to Figure 4. The inner wall of the guide hole 53 is provided with a first limiting portion 54, and the outer surface of the guide member 60 is provided with a second limiting portion 68. The first limiting portion 54 and the second limiting portion 68 are opposite to each other, and the second limiting portion 68 is located on the side of the first limiting portion 54 facing away from the second surface 52. One end of the first elastic member 70 abuts against the first limiting portion 54, and the other end abuts against the second limiting portion 68.

[0069] In one embodiment, the first limiting portion 54 and the fixing block 50 may be an integral structure, or may be connected and fixed by welding, screwing, or clamping, without limitation. In one embodiment, the second limiting portion 68 and the guide member 60 may be an integral structure, or may be connected and fixed by welding, screwing, or clamping, without limitation.

[0070] In one embodiment, the connection between the first stopper 54 and the two opposing end surfaces of the first stopper 54 is chamfered. In one embodiment, the connection between the outer peripheral surface of the second stopper 68 and the two opposing end surfaces of the second stopper 68 is also chamfered. By using chamfered corners on the end surfaces of the first stopper 54 and the second stopper 68, the sharp edges of the first stopper 54 and the second stopper 68 will not cause damage to other components or operators.

[0071] In one embodiment, the end surface of the first limiting portion 54 facing away from the first surface 51 may be flush with the second surface 52, or may be located between the first surface 51 and the second surface 52, without limitation. In one embodiment, the end surface of the second limiting portion 68 facing away from the second surface 52 may be flush with the end surface of the guide member 60 facing away from the second surface 52, or may be located between the end surface of the guide member 60 facing away from the second surface 52 and the second surface 52, without limitation.

[0072] In one embodiment, the first stopper 54 may extend along the inner circumferential wall of the guide hole 53. In one embodiment, there may be multiple first stoppers 54, with the multiple first stoppers 54 being spaced apart circumferentially along the inner circumferential wall of the guide hole 53. In one embodiment, the structure of the second stopper 68 is similar to that of the first stopper 54, and reference will be made thereto without further explanation.

[0073] A first limiting portion 54 is provided on the inner wall of the guide hole 53, and a second limiting portion 68 is provided on the outer surface of the guide member 60. The first limiting portion 54 is opposite to the second limiting portion, and the second limiting portion 68 is located on the side of the first limiting portion 54 facing away from the second surface 52. One end of the first elastic member 70 abuts against the first limiting portion 54, and the other end abuts against the second limiting portion 68, so that the guide member 60 will not fall out of the fixed block 50 from the first surface 51 to the second surface 52, and a support base is provided for the first elastic member 70, so that the guide member 60 can return to its original position after the installation of the pin 2001 is completed.

[0074] Please refer to Figure 4, the guide mechanism 200 also includes a pressure plate 80, which has a mounting hole 81. The pressure plate 80 is fixed to the first surface 51, and the mounting hole 81 is connected to the assembly hole 61. The pressure plate 80 is used to extend into the guide hole 53 and limit the guide member 60.

[0075] Exemplarily, the pressure plate 80 further defines at least two first connection holes 82 spaced apart from each other, and the first surface 51 correspondingly defines at least two second connection holes 55 spaced apart from each other. The pressure plate 80 and the first surface 51 are fixedly connected by at least two bolts 83 extending through the first connection holes 82 and the second connection holes 55. In one embodiment, the pressure plate 80 and the first surface 51 may also be fixedly connected by welding, riveting, or clamping, without limitation.

[0076] In one embodiment, the inner diameter of the mounting hole 81 is larger than the outer diameter of the abutting portion 13, so that the abutting portion 13 can extend into the mounting hole 81 and abut against the guide member 60. In one embodiment, the inner diameter of the mounting hole 81 is larger than the inner diameter of the assembly hole 61, so that the push rod 20 can pass through the mounting hole 81 and extend into the assembly hole 61.

[0077] By setting a pressure plate 80, the pressure plate 80 is provided with a mounting hole 81, the pressure plate 80 is fixed to the first surface 51, the mounting hole 81 is connected to the assembly hole 61, and the pressure plate 80 is used to extend into the guide hole 53 and limit the guide member 60, so that the end face of the guide member 60 close to the first surface 51 can abut against the pressure plate 80 to prevent the guide member 60 from falling off the first surface 51.

[0078] In this solution, as shown in FIG2 , the push rod 20 , the mounting cylinder 10 , and the guide member 60 are all in the first working section;

[0079] As shown in FIG5 , at the beginning of the nailing process, the driving device drives the push rod 20 to rotate and descend, the second elastic member 30 is compressed, the push rod 20 drives the installation cylinder 10 to move, and the abutment portion 13 of the installation cylinder 10 pushes the guide member 60 to the bottom wall of the positioning hole 2003. At this time, the push rod 20, the installation cylinder 10 and the guide member 60 are in the second working section.

[0080] As shown in FIG6 , the push rod 20 continues to descend, the first elastic member 70 is compressed, and the push rod 20 pushes the plug nail 2001 to be installed into the injection hole 2002. At this time, the push rod 20, the installation cylinder 10 and the guide member 60 are in the third working section;

[0081] After the installation of the plug nail 2001 is completed, the push rod 20, the installation cylinder 10 and the guide member 60 all return to the first working section.

[0082] In the description of the embodiments of the present disclosure, it should be noted that the orientation or positional relationship of terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", and "outside" are based on the orientation or positional relationship described in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present disclosure.

[0083] The above disclosure is only a preferred embodiment of the present disclosure, and it is certainly not intended to limit the scope of the rights of the present disclosure. A person skilled in the art can understand that all or part of the processes of the above embodiment and equivalent changes made in accordance with the claims of the present disclosure are still within the scope of the present disclosure.

Claims

1. A guide mechanism (200) for installing a plug pin (2001) of a battery pack (2000), characterized in that: include: A fixing block (50) having a first surface (51) and a second surface (52) opposite to each other, wherein the fixing block (50) is provided with a guide hole (53) penetrating the first surface (51) and the second surface (52); A guide member (60) is received in the guide hole (53); the guide member (60) is provided with an assembly hole (61), and the assembly hole (61) is used to place the plug nail (2001); A first elastic member (70) is sleeved on the guide member (60) and received in the guide hole (53); one end of the first elastic member (70) abuts against the fixing block (50), and the other end abuts against the guide member (60); The guide member (60) is used to extend out of the second surface (52) to install the plug nail (2001), and when the guide member (60) extends out of the second surface (52), the first elastic member (70) is in a compressed state.

2. The guide mechanism (200) according to claim 1, characterized in that: The assembly hole (61) is rotationally symmetrical about an axis (62), and the cross-sectional shape of the assembly hole (61) at any position on the axis (62) is circular; the assembly hole (61) comprises a first hole section (63), the first hole section (63) is close to the first surface (51), and the inner diameter of the first hole section (63) gradually decreases from the first surface (51) to the second surface (52).

3. The guide mechanism (200) according to claim 2, characterized in that: The assembly hole (61) further comprises a second hole section (64), the second hole section (64) being connected to an end of the first hole section (63) facing away from the first surface (51), the inner diameter of the second hole section (64) gradually decreasing from the first surface (51) to the second surface (52), and in a longitudinal section of the guide member (60) passing through the axis (62), the inner wall of the first hole section (63) is a straight line, and the inner wall of the second hole section (64) is a curve.

4. The guide mechanism (200) according to claim 3, characterized in that: The assembly hole also includes a third hole segment (65), the third hole segment (65) being connected to an end of the second hole segment (64) facing away from the first hole segment (63), and the first hole segment (63) and the third hole segment (65) being smoothly connected via the second hole segment (64).

5. The guide mechanism (200) according to any one of claims 1 to 4, characterized in that: A first chamfer (66) is provided between the end surface of the guide member (60) close to the second surface (52) and the inner wall of the assembly hole (61).

6. The guide mechanism (200) according to any one of claims 1 to 5, characterized in that: A second chamfer (67) is provided between the end surface of the guide member (60) close to the second surface (52) and the outer peripheral surface of the guide member (60).

7. The guide mechanism (200) according to any one of claims 1 to 6, characterized in that: The inner peripheral wall of the guide hole (53) is provided with a first limiting portion (54), and the outer peripheral surface of the guide member (60) is provided with a second limiting portion (68), the first limiting portion (54) and the second limiting portion (68) are opposite to each other, and the second limiting portion (68) is located on the side of the first limiting portion (54) facing away from the second surface (52), and one end of the first elastic member (70) abuts against the first limiting portion (54), and the other end abuts against the second limiting portion (68).

8. The guide mechanism (200) according to any one of claims 1 to 7, characterized in that: The guide mechanism (200) further comprises a pressing plate (80), the pressing plate (80) being provided with a mounting hole (81), the pressing plate (80) being fixed to the first surface (51), the mounting hole (81) being connected to the assembly hole (61), and the pressing plate (80) being used to extend into the guide hole (53) and to limit the guide member (60).

9. The guide mechanism (200) according to claim 8, characterized in that: The pressing plate (80) is provided with a mounting hole (81), the pressing plate (80) is fixed to the first surface (51), the mounting hole (81) is connected to the assembly hole (61), and the pressing plate (80) is used to extend into the guide hole (53) and limit the guide member (60).

10. A nail installation device (1000), characterized in that: It comprises a mounting mechanism (100) and a guiding mechanism (200) as claimed in any one of claims 1 to 9, wherein the mounting mechanism (100) is used to push a pin (2001) received in an assembly hole (61) from a first surface (51) to a second surface (52).

11. The nail installation device (1000) according to claim 10, characterized in that: The mounting mechanism (100) comprises: The mounting tube (10) is provided with a receiving hole (11); A push rod (20) is inserted into the receiving hole (11); The second elastic member (30) is sleeved on the push rod (20) and received in the receiving hole (11); one end of the second elastic member (30) abuts against the push rod (20), and the other end abuts against the mounting tube (10); when the push rod (20) extends into the assembly hole (61), the second elastic member (30) is in a compressed state.

12. The nail installation device (1000) according to claim 11, characterized in that: The mounting cylinder (10) comprises a cylinder body (12) and an abutment portion (13); the cylinder body (12) is provided with the receiving hole (11); and the abutment portion (13) is connected to one end of the cylinder body (12) close to the guide mechanism (200).

13. The nail installation device (1000) according to claim 12, characterized in that: The abutting portion (13) is provided with a first limiting hole (131), the first limiting hole (131) is communicated with the receiving hole (11), the push rod (20) is passed through the first limiting hole (131), and the inner diameter of the first limiting hole (131) is smaller than the outer diameter of the second elastic member (30).

14. The nail installation device (1000) according to any one of claims 11 to 13, characterized in that: The mounting tube (10) further comprises a bearing (15), wherein the bearing (15) is sleeved on the push rod (20), one end of the bearing (15) abuts against the mounting tube (10), and the other end abuts against one end of the second elastic member (30).

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