Top cover and energy storage power supply adopting same

Abstract

The utility model relates to a top cover and an energy storage power supply adopting the top cover. The top cover comprises a cover body and a pull rod assembly arranged in the cover body. The pull rod assembly comprises a limiting sliding rail, a guide seat and a pull rod, the limiting sliding rail is installed in a first sliding groove in the cover body in a sliding mode, and a limiting protruding block at the rear end of the limiting sliding rail is installed in a second sliding groove communicated with the first sliding groove in a sliding mode in an elastic loading mode with the movement tendency of abutting against the first limiting wall; the rear end of the pull rod is hinged to the guide seat, and the front end of the pull rod extends out of an outlet in the front end of the limiting sliding rail. A hook is arranged at the rear end of the limiting sliding rail, and a circulating locking structure matched with the hook is arranged at the position, behind the second sliding groove, of the cover body. When the hook is hooked by the circulating locking structure, one section of the pull rod is stored and then two sections of the pull rod are stored, and when the hook is separated from the circulating locking structure, one section of the pull rod is pulled out and then two sections of the pull rod are pulled out, so that the use length of the pull rod is prolonged in a limited space.

Description

Technical Field

[0001] The present application relates to an energy storage power supply, and more specifically, to a top cover and an energy storage power supply using the top cover. Background Art

[0002] At present, the use of large-capacity mobile energy storage outdoor power supplies is increasing. In order to facilitate handling and movement, this type of energy storage power supply is usually equipped with a handle and a pull rod. The handle and the pull rod are structures designed for mobile equipment. Both will take up space, resulting in an increase in the volume of the energy storage power supply. In addition, the pull rods of most energy storage power supplies are now located at the bottom of the device. When using the pull rod, it is necessary to pull the pull rod out from the bottom of the device and then use the lever to tilt the device before pulling it. The pull rod at the bottom is not only inconvenient to operate, but also difficult to tilt a large-capacity energy storage power supply. Utility Model Content

[0003] The technical problem to be solved by the present application is to provide a top cover with a built-in pull rod and an energy storage power supply using the top cover in view of the above-mentioned defects of the prior art.

[0004] In order to solve the technical problem, the present application proposes a top cover in the first aspect, including a cover body, the cover body having a first end and a second end opposite to each other, a mounting groove extending from the first end to the second end is arranged in the cover body, and a pull rod assembly that can be pulled out from the first end of the cover body is arranged in the mounting groove, wherein: the mounting groove includes a first slide groove extending from the first end to the second end of the cover body and a second slide groove connected to the first slide groove and extending to the second end, the second slide groove is wider than the first slide groove so that a first limiting wall is formed at the connection between the second slide groove and the first slide groove; the pull rod assembly includes a limiting slide rail, a guide seat and a pull rod; the limiting slide rail is slidably mounted in the first slide groove, and limiting protrusions are formed on both sides of the rear end of the limiting slide rail relatively away from the first end of the cover body, and the limiting protrusions are slidably mounted in the second slide groove in an elastic loading manner with a movement tendency to abut against the first limiting wall; the guide seat is slidably mounted in the limiting slide groove opened in the sliding direction of the limiting slide rail; the pull rod is placed in the limiting slide groove and the rear end of the pull rod is aligned with the The guide seat is hinged, and the front end of the pull rod extends out from the outlet of the limit slide groove opened at the end of the limit slide rail relatively close to the first end of the cover body; the rear end of the limit slide rail is also provided with at least one hook, and the cover body is provided with at least one circular locking structure cooperating with the at least one hook behind the second slide groove; when the hook is hooked by the circular locking structure, the limit protrusion of the limit slide rail slides backward along the second slide groove to the storage position, and the pull rod slides along the limit slide groove with the guide seat to the rear end of the limit slide groove. The pull rod assembly is completely received in the installation groove; when the hook is disengaged from the cyclic locking structure, the limiting protrusion of the limiting slide rail slides forward along the second slide groove to a pop-up position abutting against the first limiting wall, and the front end of the limiting slide rail slides along the first slide groove and is exposed from the first end of the cover body, and then the front end of the pull rod is pulled outward to make the guide seat slide along the limiting slide groove until it abuts against the front end of the limiting slide groove, the pull rod is pulled out to the maximum position and can rotate relative to the guide seat in the outlet at the front end of the limiting slide rail.

[0005] According to one embodiment of the top cover described in the present application, the first slide groove and the second slide groove are opened on the inner side of the cover body, and the pull rod assembly also includes a cover plate fixedly connected to the inner side of the cover body to cover the first slide groove and the second slide groove.

[0006] According to one embodiment of the top cover described in the present application, the pull rod assembly also includes springs respectively arranged on both sides of the limiting slide rail, one end of the spring is connected to the limiting protrusion at the rear end of the limiting slide rail, and the other end is connected to the front end of the cover plate.

[0007] According to one embodiment of the top cover described in the present application, the rear ends of the limiting slide groove of the limiting slide rail are respectively provided with spring pieces protruding toward the limiting slide groove, and the rear ends of the guide seat are respectively formed with corresponding grooves. When the guide seat slides along the limiting slide groove until it abuts against the rear end of the limiting slide groove, the spring pieces are inserted into the grooves to fix the guide seat.

[0008] According to one embodiment of the top cover described in the present application, a rotating shaft sleeve is provided at the rear end of the pull rod, a mounting groove is formed on the guide seat and shaft holes are formed on both sides of the mounting groove, and a rotating shaft sleeve of the pull rod is provided with a rotating shaft rotatably supported in the shaft holes on both sides of the guide seat.

[0009] According to one embodiment of the top cover described in the present application, the at least one hook includes two hooks extending rearward from the limiting sliding blocks on both sides of the rear end of the limiting sliding rail, and the at least one circular locking structure includes two circular locking structures arranged on both sides of the rear of the second sliding groove of the cover body and respectively cooperating with the two hooks.

[0010] According to an embodiment of the top cover described in the present application, the hook includes a cantilever extending backward from the rear end of the limiting sliding block and a hanging column extending downward from the rear end of the cantilever; the circular locking structure comprises a first guide surface inclined toward one side facing the hanging column, a second guide surface connected to the rear of the first guide surface and extending backward along the sliding direction, a first V-shaped groove offset toward the other side facing the rear end of the second guide surface, a second V-shaped groove facing the first V-shaped groove in front of the first V-shaped groove and further offset toward the other side, a third guide surface inclined toward the other side facing the middle of the second V-shaped groove behind the second V-shaped groove, and a fourth guide surface connected to the outer end of the other side of the second V-shaped groove and extending forward along the sliding direction; the front end of the push-pull rod causes the limiting protrusion of the limiting slide rail to slide backward along the second slide groove, and the hanging column abuts against the first guide surface and then deviates along the first guide surface to one side and then moves backward along the second guide surface to the first V-shaped groove. When the first and second V-shaped grooves are disengaged from each other, the locking bar is moved back and forth along the second guide surface to move the locking bar forward and away from the locking bar, and the locking bar is moved back and forth along the second guide surface to move the locking bar forward and away from the locking bar.

[0011] According to an embodiment of the top cover described in the present application, the top cover further has a first handle hole connected to the first slide groove near the first end, and a second handle hole near the second end.

[0012] According to an embodiment of the top cover described in the present application, a handle is provided at the front end of the pull rod, and the handle is exposed from the first handle hole when in the storage position.

[0013] In order to solve the technical problem, the present application proposes an energy storage power supply in the second aspect, including an energy storage power supply body and a top cover arranged on the top of the energy storage power supply body, and the top cover is the aforementioned top cover.

[0014] The top cover implemented in the present application and the energy storage power supply using the top cover have the following beneficial effects: the top cover according to the embodiment of the present application is provided with a pull rod assembly with a two-stage storage and two-stage pull-out design in the cover body, which can reduce the space occupied and extend the use length of the pull rod within a limited space. The pull rod can be rotated to a certain angle for easy operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present application will be further described below with reference to the accompanying drawings and embodiments, in which:

[0016] Figure 1 is a schematic diagram of the structure of a top cover of an embodiment of the present application;

[0017] Figure 2 is a schematic structural diagram of a cover body in one embodiment of the present application;

[0018] Figure 3 yes Figure 2 Enlarged view of part A in the middle;

[0019] Figure 4 is a schematic structural diagram of a pull rod assembly in an embodiment of the present application in a two-stage storage state;

[0020] Figure 5 yes Figure 4 The structure diagram of the pull rod assembly shown is in the state of rotating the pull rod angle after the pull rod assembly is pulled out in two stages;

[0021] Figure 6 yes Figure 4 The exploded structural diagram of the tie rod assembly shown;

[0022] Figure 7 yes Figure 4 The structure schematic diagram of the pull rod assembly and the cover body assembly shown is in the second stage storage state, wherein the cover plate is removed;

[0023] Figure 8 yes Figure 7 Enlarged view of middle part B;

[0024] Fig. 9 yes Figure 4 The structure diagram of the pull rod assembly and the cover body assembly shown is in a pulled-out state, wherein the cover plate is removed;

[0025] Fig.10 yes Figure 4 The structure diagram of the pull rod assembly and the cover body assembly shown is in a two-stage pulled-out state, wherein the cover plate is removed;

[0026] Fig.11 yes Figure 4 The structural schematic diagram of the pull rod assembly and the cover body being assembled in the state of rotating the pull rod angle after the second stage is pulled out;

[0027] Fig.12 It is a structural schematic diagram of an energy storage power supply according to an embodiment of the present application.

[0028] Description of the accompanying drawings: 1000 energy storage power supply; 100 top cover; 10 cover body; 101 first end; 102 second end; 11 locking groove; 12 circular locking structure; 121 first guide surface; 122 second guide surface; 123 first V-shaped groove; 1231 first action inclined surface; 124 second V-shaped groove; 1241 second action inclined surface; 125 third guide surface; 126 fourth guide surface; 127 guide surface; 128 limiting surface; 13 ring cover; 14 first handle hole; 15 second handle hole; 20 mounting groove; 21 first slide groove; 22 second slide groove; 23 first limiting wall; 24 second Limiting wall; 241 avoidance; 30 pull rod assembly; 31 cover plate; 311 first spring hanging hole; 32 limiting slide rail; 321 limiting protrusion; 322 limiting slide groove; 323 exit; 324 spring piece; 325 second spring hanging hole; 33 guide seat; 331 mounting groove; 332 shaft hole; 333 rotating shaft; 334 groove; 34 pull rod; 341 rotating shaft sleeve; 35 handle; 36 spring; 37 hook; 371 cantilever; 372 hanging column; 41 first arrow; 42 second arrow; 43 third arrow; 44 fourth arrow; 45 fifth arrow; 46 sixth arrow; 200 energy storage power supply body. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application. In addition, the embodiments in the present application and the features in the embodiments may be combined with each other in the absence of conflict.

[0030] The present application provides a top cover with a built-in pull rod. Figure 1 FIG. 1 shows a schematic structural diagram of a top cover 100 according to an embodiment of the present application. Figure 1 As shown, the top cover 100 mainly comprises a cover body 10 and a rod assembly 30 disposed in a mounting groove 20 in the cover body 10. The cover body 10 has a first end 101 and a second end 102 opposite to each other, the mounting groove 20 extends from the first end 101 of the cover body 10 to the second end 102, and the rod assembly 30 can be pulled out from the first end 101 of the cover body 10 along the mounting groove 20.

[0031] See Figure 2 As shown, the mounting groove 20 is T-shaped and opened on the inner side of the cover body 10, and includes a first slide groove 21 and a second slide groove 22. The first slide groove 21 extends from the first end 101 of the cover body 10 to the second end 102. The second slide groove 22 is connected to the first slide groove 21 and continues to extend to the second end 102 of the cover body 10. The second slide groove 22 is wider than the first slide groove 21, so that a first limiting wall 23 is formed at the connection between the second slide groove 22 and the first slide groove 21. Figures 4 to 6 As shown, the pull rod assembly 30 includes a cover plate 31, a limiting slide rail 32, a guide seat 33, a pull rod 34 and a handle 35. The limiting slide rail 32 has a width matching the first slide groove 21 and is slidably installed in the first slide groove 21. The limiting slide rail 32 has a limiting protrusion 321 formed on both sides of the rear end relatively away from the first end 101 of the cover body and is slidably installed in the second slide groove 22. The limiting slide rail 32 is provided with a limiting slide groove 322 extending along the sliding direction, and the guide seat 33 has a width matching the limiting slide groove 322 and is slidably installed in the limiting slide groove 322. The pull rod 34 is placed in the limiting slide groove 332, and the rear end of the pull rod 34 is hinged to the guide seat 33. The front end of the pull rod 34 is connected to a handle 35 and extends from the outlet 323 opened at the front end of the limiting slide rail 32 and connected to the limiting slide groove 332.

[0032] See Figure 6 As shown, the limiting slide rail 32 is provided with spring pieces 324 protruding into the limiting slide groove 322 on both sides of the rear end of the limiting slide groove 322, and correspondingly, grooves 334 are formed on both sides of the rear end of the guide seat 33, and when the guide seat 33 slides along the limiting slide groove 322 until it abuts against the rear end of the limiting slide groove 322, the spring pieces 324 snap into the grooves 334 on both sides of the guide seat 33 to fix the guide seat 33. By pulling the handle 35 outward, the guide seat 33 can be driven by the pull rod 34 to break away from the limit of the spring pieces 324 and slide forward along the limiting slide groove 322 until the guide seat 33 abuts against the front end of the limiting slide groove 322. On the contrary, by pushing the handle 35 inward, the guide seat 33 can be driven to slide backward along the limiting slide groove 332 through the pull rod 34 until the guide seat 33 abuts against the rear end of the limiting slide groove 332, at which time the spring piece 324 is inserted into the grooves 334 on both sides of the guide seat 33 to limit the guide seat 33. Figure 6As shown, a rotating shaft sleeve 341 is provided at the rear end of the pull rod 34, and a mounting groove 331 is formed in the guide seat 33 opposite to the pull rod 34 and shaft holes 332 are formed on both sides of the mounting groove 331. A rotating shaft 333 is passed through the rotating shaft sleeve 341 of the pull rod 34 and is rotatably supported in the shaft holes 332 on both sides of the guide seat 33, thereby realizing that the rear end of the pull rod 34 is hinged with the guide seat 33, so that the pull rod 34 can rotate relative to the guide seat 33.

[0033] See also Figure 6 As shown, the cover plate 31 has a shape that matches the first slide groove 21 and the second slide groove 22. The cover plate 31 can be fixedly connected to the inner side of the cover body 10 by fasteners, so as to cover the first slide groove 21 and the second slide groove 22, so as to prevent other components of the pull rod assembly 30 installed in the first slide groove 21 and the second slide groove 22 from falling out. In addition, first spring hanging holes 311 are respectively provided on both sides of the front end of the cover plate 31, and second spring hanging holes 325 are respectively provided on the front ends of the limiting protrusions 321 on both sides of the limiting slide rail 32. One end of the two springs 36 disposed on both sides of the limiting slide rail 32 is hung on the first spring hanging hole 311, and the other end is hung on the second spring hanging hole 325, so as to apply elastic force to the limiting protrusion 321 of the limiting slide rail 32 so that it always has a movement tendency of sliding backward in the second slide groove 22 to abut against the first limiting wall 23.

[0034] See also Figure 4 and Figure 6 As shown, hooks 37 are provided on both sides of the rear end of the limiting slide rail 32, and the hooks 37 are used to cooperate with the corresponding circular locking structure 12 arranged behind the second slide groove 22 inside the cover body 10 to realize the two-stage stretching and storage of the pull rod assembly 30. Figure 6 As shown, the hook 37 includes a cantilever 371 extending backward from the rear end of the limit slider and a hanging column 372 extending downward from the rear end of the cantilever 371. The hook 37 can be integrally formed with the limit slider 32, or it can be a separate part, and can be made of a material with a certain elasticity such as plastic or metal. Under the cooperation of the cyclic locking structure 12, the hook 37 can use its own elastic deformation to be guided by the cyclic locking structure 12 to reciprocate, thereby realizing the pulling out and storage functions of the pull rod assembly 30.

[0035] See also Figure 2 As shown, the inner side of the cover body 10 is provided with locking grooves 11 on both sides behind the second slide groove 22, and the circular locking structure 12 is formed in the locking groove 11. The connection between the locking groove 11 and the second slide groove 22 forms a second limiting wall 24. The second limiting wall 24 is directly opposite to the circular locking structure 12 to form an avoidance opening 241 connecting the locking groove 11 and the second slide groove 22 for the hook 37 to enter and exit. Figure 3As shown, the cyclic locking structure 12 has a first guide surface 121 , a second guide surface 122 , a first V-shaped groove 123 , a second V-shaped groove 124 , a third guide surface 125 and a fourth guide surface 126 . The first guide surface 121 is tilted backward toward the inside facing the hanging column 372 of the hook 37, the second guide surface 122 is connected to the rear of the first guide surface 121 and extends backward along the sliding direction, the first V-shaped groove 123 is offset toward the outside facing the rear end of the second guide surface 122, the second V-shaped groove 124 is in front of the first V-shaped groove 123 and faces the first V-shaped groove 123 and is further offset toward the outside, the third guide surface 125 is tilted backward toward the outside facing the middle part of the second V-shaped groove 124 behind the second V-shaped groove 124, the fourth guide surface 126 is connected to the outer end of the outer side of the second V-shaped groove 124 and extends forward along the sliding direction to the first guide surface 121, thereby forming a circulation channel for guiding the movement of the hanging column 372 of the hook 37.

[0036] Specific combination Figure 7 and Figure 8 As shown, when the handle 35 at the front end of the push rod 34 causes the guide seat 33 to slide backwards until it abuts against the rear end of the limiting slide groove 322, the pull rod 34 is retracted. Continuing to push the pull rod 34 can cause the limiting protrusion 321 of the limiting slide rail 32 to slide backwards along the second slide groove 22, and move the hook 37 backwards into the locking groove 11. When the hanging column 372 of the hook 37 abuts against the first guide surface 121, the cantilever 371 will be elastically deformed under the action of the first guide surface 121 that is tilted backwards, and the hanging column 372 will deviate inwards along the first guide surface 121 ( Figure 8 As shown by the first arrow 41 in the figure), and then moves backward along the second guide surface 122 ( Figure 8 In order to make the movement of the hanging column 372 smoother, a limiting surface 128 parallel to the second guide surface 122 is further provided on the inner side thereof, so as to form a guiding channel between the second guide surface 122 and the limiting surface 128. When the hanging column 372 moves to abut against the first action inclined surface 1231 of the first V-shaped groove 123, it will continue to enter the middle of the first V-shaped groove 123 along the first action inclined surface 1231 under the action of the first action inclined surface 1231 ( Figure 8 The locking cam 321 of the locking rail 32 is pressed against the rear end of the second slot 22 to ensure that the hook 37 is not damaged. At this time, the spring 36 connected to the locking cam 321 is stretched. Then, the push on the pull rod 34 is released, and the locking cam 321 will slide forward along the second slot 22 in the opposite direction under the action of the movement trend generated by the spring 36, and the hanging column 372 will be separated from the first V-shaped slot 123 and abut against the second action inclined surface 1241 of the second V-shaped slot 124, and then enter the middle of the second V-shaped slot 124 along the second action inclined surface 1241 (( Figure 8As shown by the fourth arrow 44 in the figure), at this time, the second V-shaped groove 124 hooks the hanging column 372, so that the limiting protrusion 322 cannot continue to slide forward and is held in the storage position in the second slide groove 22, and the pull rod 34 is stored in two stages. In the two-stage storage state, the entire pull rod assembly 20 is completely stored in the installation groove 20 inside the cover body 10, and does not occupy space.

[0037] Recombination Figure 8 and Fig. 9 As shown, in the second stage storage state, pushing the pull rod 34 again will act on the limiting slide rail 32 through the guide seat 33 to make the limiting protrusion 321 slide backward along the second slide groove 22, and move the hanging column 372 hooked by the second V-shaped groove 124 backward to disengage from the second V-shaped groove 124. When the hanging column 372 moves backward to abut against the third guide surface 125 at the rear, it will deviate outward along the third guide surface 125 that is tilted backward toward the outside ( Figure 8 When the lever 372 moves to the outside of the second V-shaped groove 124, it will abut against the rear end of the locking groove 11 and cannot move further backward. At this point, the limiting protrusion 321 of the limiting slide rail 32 also abuts against the rear end of the second slide groove 22 and pushes it into place. In order to ensure that the hanging column 372 will not return after it escapes from the second V-shaped groove 124, an inclined guide surface 127 is formed between the outer end of the second V-shaped groove 124 and the third guide surface 125. Then, the push on the pull rod 34 is released again, and the limiting protrusion 321 will slide forward in the opposite direction along the second slide groove 22 under the action of the movement trend generated by the spring 36, and move the hanging column 372 forward along the fourth guide surface 126 to disengage from the circular locking structure 12 ( Figure 8 As shown by the sixth arrow 46 in FIG. 1 ). When the limiting protrusion 321 continues to slide forward along the second slide slot 22 under the action of the spring 36 to the pop-up position abutting against the first limiting wall 23, see Fig. 9 As shown, the front end of the limiting slide rail 32 slides along the first slide groove 21 and is exposed from the first end of the cover body 10, the pull rod 34 is pulled out, and the handle 35 is exposed to the outside. Fig.10 As shown, the handle 35 of the pull rod 34 is pulled outward, so that the guide seat 33 slides along the limiting slide groove 321 of the limiting slide rail 32 until it abuts against the front end of the limiting slide groove 321, and the pull rod 34 is pulled out to the maximum position and is in the second stage of pulling out state. Fig.11 As shown, the pull rod 34 can be rotated relative to the guide seat 33 in the outlet 323 at the front end of the limiting slide rail 32 to rotate the angle of the pull rod 34. When the pull rod assembly 30 needs to be stored, the pull rod 34 only needs to be turned flat, and the above-mentioned two-stage storage operation can be repeated to store the pull rod assembly 30 in the cover body 10.

[0038] See also Figure 1As shown, the top cover 10 is also provided with a first handle hole 14 connected to the first slide groove 21 near the first end 101, and a second handle hole 15 near the second end 102 for easy carrying. In addition, the handle 35 at the front end of the pull rod 34 is exposed from the first handle hole 14 when in the second stage storage position, so as to facilitate the pressing operation of pulling out the first stage.

[0039] According to the top cover 100 of the above embodiment of the present application, the two-stage storage and two-stage pulling out of the pull rod 34 are realized by the cooperation of the pull rod assembly 30 with the first slide groove 21 and the second slide groove 22 and the cooperation of the hook 37 with the cyclic locking structure 12, which can extend the use length of the pull rod 34 in a limited space and is easy to operate. In a further specific embodiment, the pull rod 34 can also adopt the existing multi-stage telescopic pull rod structure to further extend the use length of the pull rod 34. According to the top cover 100 of the above embodiment of the present application, the aforementioned cyclic locking structure 12 can be formed on the inner side of the cover body 10 by an integrated molding method, which greatly reduces the number of assembly parts and assembly complexity, and reduces the cost of parts.

[0040] Based on the aforementioned top cover 100, the present application also proposes an energy storage power supply. Fig.12 An energy storage power supply 1000 according to an embodiment of the present application is shown, comprising an energy storage power supply body 200 and the aforementioned top cover 100 disposed on the top of the energy storage power supply body 200. After the pull rod of the pull rod assembly built into the top cover 100 is pulled out and rotated to a certain angle, the position of the energy storage power supply 1000 can be conveniently moved together with the pulley at the bottom of the energy storage power supply body 200.

[0041] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A top cover, comprising a cover body, the cover body having a first end and a second end opposite to each other, a mounting groove extending from the first end to the second end being provided in the cover body, a pull rod assembly which can be pulled out from the first end of the cover body being provided in the mounting groove, characterized in that: The mounting groove comprises a first slide groove extending from the first end to the second end of the cover body and a second slide groove connected to the first slide groove and extending to the second end, wherein the second slide groove is wider than the first slide groove so as to form a first limiting wall at the connection between the second slide groove and the first slide groove; The pull rod assembly comprises a limiting slide rail, a guide seat and a pull rod; the limiting slide rail is slidably mounted in the first slide groove, limiting protrusions are formed on both sides of the rear end of the limiting slide rail relatively away from the first end of the cover body, and the limiting protrusions are slidably mounted in the second slide groove in an elastic loading manner with a movement tendency to abut against the first limiting wall; the guide seat is slidably mounted in a limiting slide groove opened in the sliding direction of the limiting slide rail; the pull rod is placed in the limiting slide groove and the rear end of the pull rod is hinged to the guide seat, and the front end of the pull rod extends from an outlet of the limiting slide groove connected to the end of the limiting slide rail relatively close to the first end of the cover body; The rear end of the limiting slide rail is also provided with at least one hook, and the cover body is provided with at least one circular locking structure that cooperates with the at least one hook at the rear of the second slide slot; when the hook is hooked by the circular locking structure, the limiting protrusion of the limiting slide rail slides backward along the second slide slot to the storage position, and the pull rod slides along the limiting slide slot with the guide seat to abut against the rear end of the limiting slide slot to completely store the pull rod assembly in the installation slot; when the hook escapes from the circular locking structure, the limiting protrusion of the limiting slide rail slides forward along the second slide slot to a pop-up position abutting against the first limiting wall, and the front end of the limiting slide rail slides along the first slide slot and is exposed from the first end of the cover body, and then the front end of the pull rod is pulled outward to make the guide seat slide along the limiting slide slot to abut against the front end of the limiting slide slot, and the pull rod is pulled out to the maximum position and can rotate relative to the guide seat in the outlet at the front end of the limiting slide rail.

2. The top cover according to claim 1, characterized in that: The first slide groove and the second slide groove are opened on the inner side of the cover body, and the pull rod assembly also includes a cover plate fixedly connected to the inner side of the cover body to cover the first slide groove and the second slide groove.

3. The top cover according to claim 2, characterized in that: The pull rod assembly also includes springs respectively arranged on both sides of the limiting slide rail, one end of the spring is connected to the limiting protrusion at the rear end of the limiting slide rail, and the other end is connected to the front end of the cover plate.

4. The top cover according to claim 1, characterized in that: The rear ends of the limiting slide groove of the limiting slide rail are respectively provided with spring pieces protruding into the limiting slide groove, and the rear ends of the guide seat are respectively formed with grooves. When the guide seat slides along the limiting slide groove until it abuts against the rear end of the limiting slide groove, the spring pieces are inserted into the grooves to fix the guide seat.

5. The top cover according to claim 1, characterized in that: The rear end of the pull rod is provided with a rotating shaft sleeve, the guide seat is provided with a mounting groove and shaft holes are provided on both sides of the mounting groove, and the rotating shaft sleeve of the pull rod is provided with a rotating shaft rotatably supported in the shaft holes on both sides of the guide seat.

6. The top cover according to claim 1, characterized in that: The at least one hook comprises two hooks extending rearward from the limiting sliders on both sides of the rear end of the limiting slide rail, and the at least one circular locking structure comprises two circular locking structures arranged on both sides of the rear of the second slide groove of the cover body and respectively cooperating with the two hooks.

7. The top cover according to claim 6, characterized in that: The hook includes a cantilever extending from the rear end of the limiting sliding block toward the rear and a hanging column extending downward from the rear end of the cantilever; the circular locking structure includes a first guide surface inclined toward one side of the hanging column, a second guide surface connected to the rear of the first guide surface and extending backward along the sliding direction, a first V-shaped groove offset toward the other side of the rear end of the second guide surface, a second V-shaped groove in front of the first V-shaped groove and further offset toward the other side, a third guide surface inclined toward the other side of the middle of the second V-shaped groove behind the second V-shaped groove, and a fourth guide surface connected to the outer end of the other side of the second V-shaped groove and extending forward along the sliding direction; the front end of the pushing pull rod causes the limiting protrusion of the limiting slide rail to slide backward along the second slide groove, and the hanging column abuts against the first guide surface, then deviates along the first guide surface to one side and then moves backward along the second guide surface to abut against the first action inclined surface of the first V-shaped groove and then When the first V-shaped groove is moved forward along the second guide groove, the locking bar is moved forward along the second guide groove to move the locking bar forward along the fourth guide groove to move the locking bar forward.

8. The top cover according to claim 1, characterized in that: The top cover also has a first handle hole connected to the first slide groove near the first end, and a second handle hole near the second end.

9. The top cover according to claim 8, characterized in that: A handle is provided at the front end of the pull rod, and the handle is exposed from the first handle hole when in the storage position.

10. An energy storage power supply, comprising an energy storage power supply body and a top cover arranged on the top of the energy storage power supply body, characterized in that: The top cover is the top cover according to any one of claims 1 to 9.

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