Anti-pulling damping pin and battery replacing vehicle with same

Abstract

The utility model discloses an anti-pulling shock absorption pin (10) and a battery changing vehicle with the same, the anti-pulling shock absorption pin (10) is used for being installed on a battery changing base (100) to play a role in guiding, positioning and shock absorption for a battery changing battery, the anti-pulling shock absorption pin (10) is provided with a hollow fixed installation part (101) and a floating pin (11) vertically installed in the fixed installation part (101), and an elastic part (103) is arranged between the floating pin (11) and the fixed installation part (101). A first limiting part (14) is installed at the lower end of the floating pin (11), the maximum transverse size of the first limiting part (14) is larger than the minimum inner diameter of the fixed installation part (101), the floating pin (11) can be prevented from being pulled out of the fixed installation part (101), and the battery replacing vehicle with the anti-pulling damping pin (10) has higher reliability.

Description

Technical Field

[0001] The utility model relates to the technical field of battery replacement for new energy heavy trucks, and in particular to an anti-pullout shock-absorbing pin and a battery replacement vehicle having the same. Background Art

[0002] Chinese utility model patent No. CN219393879U discloses a battery swap base for a battery swap heavy truck with a precision guide positioning device. The battery swap base is used to carry the battery swap battery, and the battery swap battery powered is electrically connected to the drive motor through the battery swap connector arranged on the battery swap base, so that the battery swap heavy truck can obtain continuous power. The battery swap base of the prior art is provided with a coarse guide column and a precision guide positioning device, so that the battery swap battery can be automatically calibrated and aligned during the falling process. However, after the battery swap battery is installed on the electric vehicle, during the driving process, the bumps and vibrations generated by the electric vehicle on the road will be transmitted to the electric vehicle through the precision guide positioning device. For battery swapping, this phenomenon will not only reduce the service life of the battery swapping, but also the hard-contact precision guide positioning device and the precision guide positioning sleeve will cause wear after repeated plugging and unplugging. In this case, the assembly accuracy can no longer be guaranteed. At the same time, due to the high precision requirements, the fit between the precision guide positioning device and the precision guide positioning sleeve is bound to be a tight fit or even an interference fit. When removing the depleted battery from the bracket, there is a risk of difficulty in pulling out or loosening the positioning pin or even pulling it out of the battery swap base. In view of this, it is necessary to develop a semi-flexible guide positioning pin, while solving the hidden danger of the positioning pin being pulled out of the battery swap base. Utility Model Content

[0003] In view of the defects in the prior art, the purpose of the utility model is to provide a semi-flexible anti-pullout shock-absorbing pin, which has an anti-pullout effect in addition to its guiding and positioning function.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] Provided is an anti-pullout shock-absorbing pin for installation on a battery exchange base to guide, position and absorb shock for a battery exchange battery. The anti-pullout shock-absorbing pin comprises a hollow fixed installation portion and a floating pin vertically installed in the fixed installation portion. An elastic portion is provided between the floating pin and the fixed installation portion. A first limiting portion is installed at the lower end of the floating pin. The maximum lateral dimension of the first limiting portion is greater than the minimum inner diameter of the fixed installation portion.

[0006] Furthermore, a movable installation sleeve fixed to the elastic part as a whole is provided in the fixed installation part, and the lower end of the floating pin is detachably connected to the movable installation sleeve.

[0007] Furthermore, the movable installation sleeve is fixedly connected to the first limiting portion as a whole.

[0008] Furthermore, a second limiting portion is provided between the fixed installation portion and the floating pin on the upper side of the first limiting portion.

[0009] Furthermore, the second limiting portion includes a limiting block provided between the fixed installation portion and the floating pin and a flexible connecting portion extending outward from the limiting block to cover an upper end of the fixed installation portion.

[0010] Furthermore, before the battery-exchange battery is installed on the battery-exchange base, the first limiting portion and the fixed installation portion are in contact with each other, and after the battery-exchange battery is installed on the battery-exchange base, the first limiting portion and the fixed installation portion are separated from each other.

[0011] Furthermore, the first limiting portion includes a nesting portion matched with the inner side or the outer side of the fixed installation portion and a blocking portion aligned with the bottom of the fixed installation portion.

[0012] Furthermore, the floating pin has a guide portion extending upward from the fixed installation portion, and the diameter of the guide portion gradually decreases from bottom to top.

[0013] Furthermore, a transverse through hole is provided at the upper end of the floating pin, and the distance between the transverse through hole and the top of the guide portion is smaller than the distance between the transverse through hole and the fixed installation portion.

[0014] The utility model also aims to provide a battery-swapping vehicle, which has a battery-swapping base for carrying a battery-swapping battery, and the battery-swapping base is provided with a plurality of anti-pullout shock-absorbing pins as described above.

[0015] By adopting the above technical solution, the beneficial effects of the utility model are:

[0016] The anti-pullout shock-absorbing pin utilizes the different functions of its floating pin in different positions to achieve the technical effect of guiding and shock absorption while also preventing it from being pulled out. The battery-swap vehicle using the anti-pullout shock-absorbing pin has higher reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the battery replacement base provided by the utility model;

[0018] Figure 2 yes Figure 1 The stereoscopic schematic diagram of the first embodiment of the anti-pullout shock-absorbing pin is shown;

[0019] Figure 3 yes Figure 2 A schematic side view of the anti-pullout shock-absorbing pin shown;

[0020] Figure 4 yes Figure 3 The schematic cross-sectional view of the anti-pullout shock-absorbing pin along the AA direction is shown;

[0021] Figure 5yes Figure 4 A schematic diagram of another state of the anti-pullout shock-absorbing pin shown;

[0022] Figure 6 It is a cross-sectional schematic diagram of the second embodiment of the anti-pullout shock-absorbing pin of the utility model;

[0023] Figure 7 yes Figure 6 A schematic diagram of another state of the anti-pullout shock-absorbing pin shown;

[0024] Figure 8 It is a cross-sectional schematic diagram of the third embodiment of the anti-pullout shock-absorbing pin of the utility model;

[0025] Fig. 9 yes Figure 8 A schematic diagram of another state of the anti-pullout shock-absorbing pin shown;

[0026] Fig.10 It is a three-dimensional schematic diagram provided by the third embodiment of the anti-pullout shock-absorbing pin of the utility model.

[0027] In the figure:

[0028] 100. Battery swap base; 10. Anti-pullout shock-absorbing pin; 101. Fixed mounting part; 102. Movable mounting sleeve; 103. Elastic part; 105. Limiting groove; 11. Floating pin; 110. Horizontal through hole; 111. Guide part; 112. First mounting part; 113. Second mounting part; 114. Mounting hole; 115. Slot; 116. Pin; 12. Mounting plate; 120. Through hole; 14. First limiting part; 141. Assembly hole; 142. Retaining part; 143. Nesting part; 15. Second limiting part; 151. Limiting block; 152. Flexible part; 20. Battery swap bottom frame; 30. Battery swap connector; 40. Coarse guide structure; 50. Buffer pad. DETAILED DESCRIPTION

[0029] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0030] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0032] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0033] See also Figures 1 to 5 As shown, the first embodiment of the utility model provides an anti-pullout shock-absorbing pin 10, which is used to be installed on the battery exchange base 100 to guide, position and damp the battery exchange battery (not shown). The battery exchange base 100 is used to be installed on the battery exchange vehicle (not shown) to carry the battery exchange battery. Preferably, the bottom of the battery exchange battery is provided with a guide sleeve (not shown) matching the anti-pullout shock-absorbing pin 10. The guide sleeve is usually made of a material with strong wear resistance, which can improve the service life of the battery exchange battery. The cooperation between the guide column 10 and the guide sleeve can realize the precise positioning of the battery exchange battery, so that the battery exchange interface (not shown) on the battery exchange battery is accurately docked with the battery exchange connector 30 on the battery exchange base 100. Furthermore, the battery exchange base 100 is preferably provided with a coarse guide structure 40. After the coarse step guidance and positioning of the coarse guide structure 40, it can ensure that the guide column 10 and the guide sleeve are initially aligned. The battery exchange base 100 has a battery exchange bottom frame 20, and a plurality of buffer pads 50 spaced apart are provided between the battery exchange bottom frame 20 and the battery exchange battery. The buffer pads 50 provide buffering protection for vibrations of the battery exchange battery in the vertical direction.

[0034] The anti-pullout shock-absorbing pin 10 has a hollow fixed mounting portion 101 and a floating pin 11 vertically mounted in the fixed mounting portion 101. Preferably, the fixed mounting portion 101 is in a hollow cylindrical shape and is fixedly connected to a mounting plate 12 at the periphery. A through hole 120 is provided on the mounting plate 12. The fixed mounting portion 101 can be fixedly mounted on the battery-exchange bottom frame 20 by a bolt (not shown) passing through the through hole 120. An elastic portion 103 is provided between the floating pin 11 and the fixed mounting portion 101. The elastic portion 103 is usually partially filled between the floating pin 11 and the fixed mounting portion 101 with rubber, for example, by vulcanization, so that the floating pin 11 has a buffering and shock-absorbing effect on the battery-exchange battery in the horizontal direction, thereby protecting the battery-exchange battery mounted on the floating pin 11. Furthermore, a first limiting portion 14 is installed at the lower end of the floating pin 11, and the maximum lateral dimension of the first limiting portion 14 is larger than the minimum inner diameter of the fixed mounting portion 101. The purpose of such a design is that the floating pin 11 can make a partial downward movement relative to the fixed mounting portion 101 in the initial state, but cannot move upward relative to the fixed mounting portion 101. In other words, the floating pin 11 cannot be pulled out from the fixed mounting portion 101. In other words, the floating pin 11 that complies with the present application has an anti-pulling effect.

[0035] Preferably, a movable mounting sleeve 102 fixed as one with the elastic portion 103 is provided in the fixed mounting portion 101, and the lower end of the floating pin 11 is detachably connected to the movable mounting sleeve 102. The advantage of such a design is that the movable mounting sleeve 102, the elastic portion 103 and the fixed mounting portion 101 can be integrated into one, and then the first mounting portion 112 at the lower end of the floating pin 11 is installed on the movable mounting sleeve 102, and finally the first limiting portion 14 is installed on the second mounting portion 113 at the end of the floating pin 11. Preferably, a mounting hole 114 is provided on the first limiting portion 14, and the mounting hole 114 and the second mounting portion 113 are detachably connected by threaded connection, which is helpful for later inspection and maintenance. In some other embodiments, the movable mounting sleeve 102 can also be fixedly connected to the first limiting portion 14 as one, and only the floating pin 11 is installed on the movable mounting sleeve 102, or the floating pin 11, the movable mounting sleeve 102 and the first limiting portion 14 can be fixedly assembled into one by threaded connection or the like.

[0036] Furthermore, a second limiting portion 15 is provided on the upper side of the first limiting portion 14 between the fixed installation portion 101 and the floating pin 11, so that the swing amplitude of the floating pin 11 can be controlled by limiting the activity space of the floating pin 11 at intervals up and down, so that the resetting ability of the floating pin 11 is stronger. Preferably, the second limiting portion 15 includes a limiting block 151 provided between the fixed installation portion 101 and the floating pin 11 and a flexible connection portion 152 extending outward from the limiting block 151 to cover the upper end of the fixed installation portion 101, and the flexible connection portion 152 can play a dustproof and waterproof effect.

[0037] Furthermore, if Figure 4 , Figure 6 and Figure 8 As shown, before the battery replacement battery is installed on the battery replacement base 100, the first limiting portion 14 and the fixed installation portion 101 are in contact with each other so that the floating pin 11 and the fixed installation portion 101 are relatively fixed to provide a rigid guiding and positioning capability. After the battery replacement battery is installed on the battery replacement base 100, as shown Figure 5 , Figure 7 and Fig. 9 As shown, the first limiting portion 14 and the fixed mounting portion 101 are separated from each other, and the elastic portion 103 provides a buffer for the floating pin 11 to realize the flexible connection function of the floating pin 11, thereby reducing the impact force borne by the battery-swap battery on the battery-swap base 100, thereby achieving the purpose of prolonging the service life of the battery-swap battery.

[0038] Another example Figures 6 to 9 As shown, in the second and third embodiments of the anti-pullout shock-absorbing pin 10, the first limiting portion 14 includes a nesting portion 143 matching the inner side or outer side of the fixed mounting portion 101 and a blocking portion 142 aligned with the bottom of the fixed mounting portion 101, the nesting portion 143 and the blocking portion 142 are roughly convex structures or concave structures, and are in an interlocking form with the fixed mounting portion 101. When the floating pin 11 pushes the first limiting portion 14 downward under the action of the gravity of the battery replacement battery, the nesting portion 143 and the blocking portion 142 are separated from the fixed mounting portion 101. Preferably, the nesting portion 143 is provided with a chamfer (not shown) to facilitate better resetting.

[0039] Preferably, the floating pin 11 has a guide portion 111 extending upward from the fixed mounting portion 101, and the diameter of the guide portion 111 gradually decreases from bottom to top, or in some embodiments, the upper end of the guide portion 111 is conical, and the lower end is cylindrical that matches the guide sleeve at the bottom of the battery-swap battery. Specifically, the weight of the battery-swap battery is shared by the buffer pad 50, that is, the buffer pad 50 provides a buffer for the battery-swap battery in the vertical direction, and thus the anti-pullout shock-absorbing pin 10 only needs to provide a buffer in the horizontal direction.

[0040] A transverse through hole 110 is provided at the upper end of the floating pin 11, and the distance between the transverse through hole 110 and the top of the guide portion 111 is smaller than the distance between the transverse through hole 110 and the fixed mounting portion 101. The transverse through hole 110 of the floating pin 11 is penetrated by a clamp, so that the floating pin 11 can be easily pulled or rotated in time, which is helpful for the assembly of the anti-pullout shock-absorbing pin 10. Similarly, an assembly hole 141 is also provided on the first limiting portion 14 to facilitate clamping, which is not elaborated here.

[0041] For example Fig.10 As shown, in the third embodiment provided by the utility model, the first limiting portion 14 is not cylindrical but is elongated, and a slot 115 is provided on the second mounting portion 113 of the floating pin 11 for mounting the first limiting portion 14, and the first limiting portion 14 can be fixedly connected to the floating pin 11 as a whole through a pin 116. Preferably, two limiting grooves 105 are provided at the lower end of the fixed mounting portion 101, and the two ends of the first limiting portion 14 are respectively limited in the two limiting grooves 105, that is, the maximum lateral dimension of the first limiting portion 14 is greater than the minimum inner diameter of the fixed mounting portion 101. Therefore, in the third embodiment, the floating pin 11 can still have the technical effect of preventing pull-out.

[0042] The utility model also provides a battery-swap vehicle, which has a battery-swap base 100 for carrying a battery-swap battery. The battery-swap base 100 is provided with a plurality of anti-removal shock-absorbing pins 10 as described above. Therefore, the battery-swap battery installed on the battery-swap base 100 of the battery-swap vehicle can be better protected during transportation. At the same time, when the battery-swap battery needs to be replaced after it is exhausted, there is no need to worry about the shock-absorbing pins that play a guiding and positioning role being pulled out of the battery-swap base 100. That is to say, the battery-swap vehicle with the anti-removal shock-absorbing pins 10 has higher reliability.

[0043] The above embodiments are only to illustrate the basic principles and characteristics of the present invention. The present invention is not limited by the above embodiments. Without departing from the spirit and scope of the present invention, the present invention may be subject to various changes and modifications, which are within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An anti-pullout shock-absorbing pin (10), used for being installed on a battery exchange base (100) to guide, position and absorb shock for a battery exchange battery, the anti-pullout shock-absorbing pin (10) comprising a hollow fixed installation portion (101), and a floating pin (11) vertically installed in the fixed installation portion (101), characterized in that: An elastic portion (103) is provided between the floating pin (11) and the fixed mounting portion (101), and a first limiting portion (14) is installed at the lower end of the floating pin (11), wherein the maximum transverse dimension of the first limiting portion (14) is greater than the minimum inner diameter of the fixed mounting portion (101).

2. The anti-pullout shock-absorbing pin (10) according to claim 1, characterized in that: A movable installation sleeve (102) fixed integrally with the elastic portion (103) is provided in the fixed installation portion (101), and the lower end of the floating pin (11) is detachably connected to the movable installation sleeve (102).

3. The anti-pulling shock-absorbing pin (10) according to claim 2, characterized in that: The movable installation sleeve (102) and the first limiting portion (14) are fixedly connected as a whole.

4. The anti-pullout shock-absorbing pin (10) according to claim 1, characterized in that: A second limiting portion (15) is provided between the fixed installation portion (101) and the floating pin (11) on the upper side of the first limiting portion (14).

5. The anti-pulling shock-absorbing pin (10) according to claim 4, characterized in that: The second limiting portion (15) comprises a limiting block (151) provided between the fixed installation portion (101) and the floating pin (11), and a flexible connection portion (152) extending outwards from the limiting block (151) to cover the upper end of the fixed installation portion (101).

6. The anti-pullout shock-absorbing pin (10) according to claim 1, characterized in that: Before the battery-exchange battery is installed on the battery-exchange base (100), the first limiting portion (14) and the fixed installation portion (101) are in contact with each other, and after the battery-exchange battery is installed on the battery-exchange base (100), the first limiting portion (14) and the fixed installation portion (101) are separated from each other.

7. The anti-pullout shock-absorbing pin (10) according to claim 1, characterized in that: The first limiting portion (14) comprises a nesting portion (143) matching the inner side or the outer side of the fixed installation portion (101) and a blocking portion (142) aligned with the bottom of the fixed installation portion (101).

8. The anti-pullout shock-absorbing pin (10) according to claim 1, characterized in that: The floating pin (11) has a guide portion (111) extending upward from the fixed installation portion (101), and the diameter of the guide portion (111) gradually decreases from bottom to top.

9. The anti-pullout shock-absorbing pin (10) according to claim 8, characterized in that: A transverse through hole (110) is provided at the upper end of the floating pin (11), and the distance between the transverse through hole (110) and the top of the guide portion (111) is smaller than the distance between the transverse through hole (110) and the fixed installation portion (101).

10. A battery-swapping vehicle, comprising a battery-swapping base (100) for carrying a battery-swapping battery, wherein the battery-swapping base (100) is provided with a plurality of anti-pullout shock-absorbing pins (10) as claimed in any one of claims 1 to 9.

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