A quick-release locking device for testing automotive lead-acid batteries
By designing a quick-removal locking device, using the coordination of the workbench and the placement plate, the rapid fixing and removal of lead-acid batteries is achieved, solving the cumbersome fixing and removal problems in the prior art, and improving detection efficiency.
Patent Information
- Application Number
- CN202211246869.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-10-12
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2042-10-12
AI Technical Summary
The prior art is complicated when removing and fixing lead-acid batteries, which affects the detection process.
A quick-removal locking device is designed, including a workbench, connecting rod, clamp, elastic member, fixing frame and placement mechanism. Through the coordination of the placement plate and the tie rod, the rapid movement of the clamp is achieved to fix or remove the lead-acid battery.
The rapid fixation and removal of lead-acid batteries is achieved, simplifying the detection process and improving the detection efficiency.
Smart Images

Figure CN115592584B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a locking device, in particular to a quick-release locking device for testing automotive lead-acid batteries. Background Art
[0002] With the continuous consumption of petroleum energy, electric vehicles are being studied and promoted by countries around the world for their energy-saving and environmentally friendly characteristics. The power batteries related to electric vehicles are mainly divided into two types: lead-acid batteries and lithium-ion batteries in terms of material composition. Lead-acid batteries have mature technology and low cost. The internal structure of lead-acid batteries is constantly improving, and their service life is constantly increasing. They account for a large proportion in the electric vehicle industry. After the lead-acid batteries are produced, the positive and negative electrodes of the lead-acid batteries need to be connected to the tester to test the voltage, current and capacity of the lead-acid batteries. The lead-acid batteries need to be fixed during testing to prevent the movement of the lead-acid batteries from affecting the testing process.
[0003] The patent with patent announcement number CN107498478A discloses a battery system vibration test fixing tool, including a base plate and more than two battery system fixing claws, the battery system fixing claws are detachably mounted on the base plate, the battery system fixing claws are provided with battery system fixing holes corresponding to the positions of the battery system mounting holes, and the battery system to be tested is fixedly mounted on the base plate by the battery system fixing claws. The above patent uses bolts to fix the fixing claws, and then fixes the battery by the fixing claws, but the above patent needs to unscrew the bolts and remove the fixing claws when removing the battery, and the fixing claws need to be fixed with bolts again during subsequent fixing, and this fixing method is relatively cumbersome and inconvenient to quickly fix and remove the battery, which affects the detection process.
[0004] Therefore, there is an urgent need for a quick-release locking device for testing automotive lead-acid batteries that can quickly fix and remove the battery. Summary of the invention
[0005] In order to overcome the disadvantages of the above patent that the bolts need to be unscrewed and the fixing claws need to be removed when removing the battery, and the fixing claws need to be fixed with bolts again during subsequent fixing, while this fixing method is relatively cumbersome and inconvenient for quickly fixing and removing the battery, thus affecting the detection process, the technical problem to be solved is: to provide a quick-release locking device for automotive lead-acid battery testing that can quickly fix and remove the battery.
[0006] The present invention is achieved through the following technical approaches: a quick-release locking device for testing automotive lead-acid batteries, comprising a workbench, a first connecting rod, a clamping plate, a first elastic member, a fixing frame and a placement mechanism, the left and right sides of the top of the workbench are connected to the fixing frames, the first connecting rod is slidably arranged in the fixing frame, the inner sides of the two first connecting rods are connected to the clamping plates, the first connecting rod is sleeved with a first elastic member, one end of the first elastic member is connected to the clamping plate, and the other end of the first elastic member is connected to the fixing frame, and the workbench is provided with a placement mechanism for placing the lead-acid battery.
[0007] Furthermore, the placement mechanism includes a placement plate, a pull rod and a contact rod. A first sliding groove is opened on both sides of the left and right sides of the workbench. A placement plate is slidably arranged between the two first sliding grooves. The front side of the placement plate is connected to the pull rod. The top rear side of the placement plate is symmetrically connected to the contact rod. The movement of the contact rod can squeeze the splint to move outward.
[0008] Furthermore, it also includes a connecting mechanism for connecting the positive and negative ports of the lead-acid battery, the connecting mechanism includes a guide rod, a connecting plate, a first screw, a guide rail, a clamping block and a second elastic member, the two fixed frames are connected to the outer sides of the guide rods, a connecting plate is slidably arranged between the two guide rods, a first screw is slidably arranged in the connecting plate, the bottom end of the first screw is connected to the guide rail, clamping blocks are slidably arranged on both sides of the left and right sides of the guide rail, and a second elastic member is connected between the two clamping blocks.
[0009] Furthermore, it also includes a limiting mechanism for limiting the lead-acid battery, the limiting mechanism includes a second screw and a limiting plate, the second screw is threadedly arranged on the front side of the placement plate, the limiting plate is rotatably arranged on the rear end of the second screw, and second sliding grooves are opened on both sides of the placement plate, and the limiting plate slides between the two second sliding grooves.
[0010] Furthermore, it also includes a lifting mechanism for driving the connecting plate to move, the lifting mechanism includes a fixed plate, a second connecting rod, a connecting frame, a third elastic member, a lifting rod, a connecting block, and a fixed plate is connected to the rear side of the top of the workbench, and the second connecting rod is slidably arranged on the front and rear sides of the fixed plate, and a connecting frame is connected between the front ends of the two second connecting rods, and a third elastic member is sleeved on the second connecting rod, one end of the third elastic member is connected to the fixed plate, and the other end of the third elastic member is connected to the connecting frame, and lifting rods are rotatably arranged on the inner sides of the two fixed frames, and connecting blocks are connected to the left and right sides of the top of the connecting plate, and the connecting block is slidably connected to the lifting rod, and a fourth elastic member is sleeved on the guide rod, one end of the fourth elastic member is connected to the connecting plate, and the other end of the fourth elastic member is connected to the fixed frame.
[0011] Furthermore, it also includes a discharge mechanism for removing the lead-acid battery, the discharge mechanism includes a loading plate and a handle, the loading plate is placed on the top of the placement plate, and the left and right sides of the top of the loading plate are connected to the handle.
[0012] Furthermore, it also includes a fixing mechanism for fixing the placement plate, the fixing mechanism includes a support rod and a clamping block, the support rod is slidably arranged at the top of the workbench, the left and right sides of the top of the support rod are connected with clamping blocks, the left and right sides of the placement plate are provided with clamping grooves, the clamping blocks can be inserted into the clamping grooves, and a fifth elastic member is slidably arranged on the support rod, one end of the fifth elastic member is connected to the workbench, and the other end of the fifth elastic member is connected to the clamping block.
[0013] Furthermore, a nut is also included, and the nut is threadedly arranged on the first screw rod.
[0014] From the above description of the structure of the present invention, it can be seen that the design starting point, concept and advantages of the present invention are: 1. The staff puts in and pulls out the placement plate, and the placement plate drives the contact rod to squeeze the clamp plate to move outward, thereby achieving the purpose of quickly taking out and putting in the lead-acid battery.
[0015] 2. Move the connecting plate downward so that the second elastic member drives the clamping block to clamp the lead-acid battery port inward, thereby facilitating subsequent detection.
[0016] 3. The staff rotates the second screw so that the limit plate limits the position of the lead-acid battery, thereby preventing the lead-acid battery from falling out of the placement plate during the movement of the lead-acid battery.
[0017] 4. The rear side of the lifting rod is squeezed backward by the second connecting rod, so that the front side of the lifting rod drives the connecting plate to move downward, and the staff does not need to manually press the connecting plate, thereby reflecting the automation of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.
[0019] Figure 2 It is a partial three-dimensional structural schematic diagram of the present invention.
[0020] Figure 3 It is a schematic diagram of the first three-dimensional structure of the placement mechanism of the present invention.
[0021] Figure 4 It is a schematic diagram of the second three-dimensional structure of the placement mechanism of the present invention.
[0022] Figure 5 It is a three-dimensional structural schematic diagram of the connecting mechanism of the present invention.
[0023] Figure 6 It is a partial three-dimensional structural schematic diagram of the connecting mechanism of the present invention.
[0024] Figure 7 It is a schematic diagram of the three-dimensional structure of the limiting mechanism of the present invention.
[0025] Figure 8It is a first stereoscopic schematic diagram of the lifting mechanism of the present invention.
[0026] Fig. 9 It is a second stereoscopic schematic diagram of the lifting mechanism of the present invention.
[0027] Fig.10 It is a three-dimensional schematic diagram of the unloading mechanism of the present invention.
[0028] Fig.11 It is a first stereoscopic schematic diagram of the fixing mechanism of the present invention.
[0029] Fig.12 It is a second stereoscopic schematic diagram of the fixing mechanism of the present invention.
[0030] Figure numbers: 1, workbench, 2, first connecting rod, 3, clamping plate, 4, first elastic member, 5, fixing frame, 6, placing mechanism, 601, first slide groove, 602, placing plate, 603, pulling rod, 604, contact rod, 7, connecting mechanism, 701, guide rod, 702, connecting plate, 704, nut, 705, first screw rod, 706, guide rail, 707, clamping block, 708, second elastic member, 8, limiting mechanism, 801, second slide groove , 802, the second screw rod, 803, the limit plate, 9, the lifting mechanism, 901, the fixing plate, 902, the second connecting rod, 903, the connecting frame, 904, the third elastic member, 905, the lifting rod, 906, the connecting block, 907, the fourth elastic member, 10, the unloading mechanism, 1001, the loading plate, 1002, the handle, 11, the fixing mechanism, 1101, the support rod, 1102, the block, 1103, the fifth elastic member, 1104, the slot. DETAILED DESCRIPTION
[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiment in which the limit plate slides between the two limit plates is only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0032] Example 1
[0033] See also Figure 1-Figure 6A quick-release locking device for testing automotive lead-acid batteries includes a workbench 1, a first connecting rod 2, a clamping plate 3, a first elastic member 4, a fixing frame 5 and a placing mechanism 6. The fixing frames 5 are connected to the left and right sides of the top of the workbench 1. The first connecting rod 2 is slidably arranged on the fixing frame 5. The inner sides of the two first connecting rods 2 are welded with clamping plates 3. The first connecting rod 2 is sleeved with a first elastic member 4. One end of the first elastic member 4 is connected to the clamping plate 3, and the other end of the first elastic member 4 is connected to the fixing frame 5. The workbench 1 is provided with a placing mechanism 6, and the placing mechanism 6 is used to place the lead-acid battery.
[0034] See also Figure 1 , Figure 3 and Figure 4 The placement mechanism 6 includes a placement plate 602, a pull rod 603 and a contact rod 604. First slide grooves 601 are opened on both sides of the left and right sides of the workbench 1. A placement plate 602 is slidably arranged between the two first slide grooves 601. A pull rod 603 is welded on the front side of the placement plate 602. The contact rod 604 is symmetrically connected to the left and right sides of the top rear side of the placement plate 602. The movement of the contact rod 604 can squeeze the splint 3 to move outward.
[0035] See also Figure 1 , Figure 5 and Figure 6 , also includes a connecting mechanism 7 for connecting the lead-acid battery port, the connecting mechanism 7 includes a guide rod 701, a connecting plate 702, a first screw 705, a guide rail 706, a clamp 707 and a second elastic member 708, the two fixing frames 5 are welded with guide rods 701 on the outside, a connecting plate 702 is slidably arranged between the two guide rods 701, a first screw 705 is slidably arranged on the connecting plate 702, the bottom end of the first screw 705 is connected to the guide rail 706, clamps 707 are slidably arranged on the left and right sides of the guide rail 706, and a second elastic member 708 is connected between the two clamps 707.
[0036] A nut 704 is also included. The nut 704 is threadedly arranged on the first screw rod 705 , and the nut 704 is used to fix the first screw rod 705 .
[0037] When the staff needs to use the device, the staff places the lead-acid battery on the placement plate 602. After the lead-acid battery is placed, the staff aligns the placement plate 602 with the first slide groove 601, and then the staff pushes the placement plate 602 backward into the first slide groove 601, and the contact rod 604 squeezes the clamping plate 3 to move outward, and the clamping plate 3 drives the first connecting rod 2 to squeeze the first elastic member 4 outward, and the first elastic member 4 is deformed. After the staff pushes the placement plate 602 completely in, the contact rod 604 no longer squeezes the clamping plate 3, and the first elastic member 4 drives the clamping plate 3 and the first connecting rod 2 to quickly clamp the lead-acid battery inward to prevent the lead-acid battery from moving at will. After the lead-acid battery is clamped, the staff unscrews the nut 704 and moves the first screw 705. The first screw 705 drives the clamping block 707 to move through the guide rail 706. When the clamping block 707 moves to the appropriate position, the staff rotates the nut 704 in the opposite direction, and the nut 704 fixes the first screw 705, and the staff presses the connecting plate 702 downward. , the clamp block 707 contacts the lead-acid battery port downward, the lead-acid battery port squeezes the clamp block 707 to move outward, and the second elastic member 708 is deformed. When the connecting plate 702 moves downward to a suitable position, the second elastic member 708 drives the clamp block 707 to clamp the lead-acid battery port inward. The clamp block 707 is connected to the external detection equipment, and the staff can test the lead-acid battery. When the lead-acid battery is tested, the staff pulls the connecting plate 702 upward, and the connecting plate 702 drives the clamp block 707 resets upward, the clamp block 707 no longer clamps the lead-acid battery port, the second elastic member 708 drives the clamp block 707 to reset, the staff pulls the placement plate 602 forward, the contact rod 604 moves the clamp plate 3 outward again, the first elastic member 4 is deformed, the clamp plate 3 no longer clamps the lead-acid battery, the staff can continue to pull the placement plate 602 completely forward, thereby achieving the purpose of quickly removing the lead-acid battery, after the placement plate 602 is completely pulled out, the first elastic member 4 drives the clamp plate 3 to reset inward.
[0038] Example 2
[0039] Based on Example 1, see Figure 1 and Figure 7 , and also includes a limiting mechanism 8 for limiting the lead-acid battery, the limiting mechanism 8 includes a second screw 802 and a limiting plate 803, the front side of the placement plate 602 is threadedly provided with the second screw 802, the rear end of the second screw 802 is rotatably provided with the limiting plate 803, the left and right sides of the placement plate 602 are provided with second slide grooves 801, and the limiting plate 803 slides between the two second slide grooves.
[0040] See also Figure 1 , Figure 8 and Fig. 9, and also includes a lifting mechanism 9 for driving the connecting plate 702 to move. The lifting mechanism 9 includes a fixed plate 901, a second connecting rod 902, a connecting frame 903, a third elastic member 904, a lifting rod 905, a connecting block 906 and a fourth elastic member 907. The top rear side of the workbench 1 is connected to a fixed plate 901, and the second connecting rods 902 are slidably arranged on both the front and rear sides of the fixed plate 901. A connecting frame 903 is connected between the front ends of the two second connecting rods 902. The contact rod 604 moves backward to squeeze the connecting frame 903 to move backward. The second connecting rod 902 is sleeved with a third elastic member 904. Three elastic members 904, one end of the third elastic member 904 is connected to the fixed plate 901, and the other end of the third elastic member 904 is connected to the connecting frame 903. The inner sides of the two fixing frames 5 are rotatably provided with lifting rods 905, and the connecting frame 903 can squeeze the lifting rods 905 to rotate when moving backward. The left and right sides of the top of the connecting plate 702 are connected to connecting blocks 906, and the connecting blocks 906 are slidably connected to the lifting rods 905. The guide rod 701 is sleeved with a fourth elastic member 907, one end of the fourth elastic member 907 is connected to the connecting plate 702, and the other end of the fourth elastic member 907 is connected to the fixing frame 5.
[0041] See also Figure 1 and Fig.10 , and also includes a discharge mechanism 10 for removing the lead-acid battery, the discharge mechanism 10 includes a loading plate 1001 and a handle 1002, the loading plate 1001 is placed on the top of the placement plate 602, and the handles 1002 are welded on the left and right sides of the top of the loading plate 1001.
[0042] See also Figure 1 , Fig.11 and Fig.12 , also includes a fixing mechanism 11 for fixing the placement plate 602, the fixing mechanism 11 includes a support rod 1101 and a block 1102, the support rod 1101 is slidably arranged at the top of the workbench 1, the left and right sides of the top of the support rod 1101 are connected with the block 1102, the left and right sides of the placement plate 602 are provided with a slot 1104, the block 1102 can be inserted into the slot 1104, and a fifth elastic member 1103 is slidably arranged on the support rod 1101, one end of the fifth elastic member 1103 is connected to the workbench 1, and the other end of the fifth elastic member 1103 is connected to the block 1102.
[0043] The staff puts the lead-acid battery on the loading plate 1001, and rotates the second screw 802, which drives the limit plate 803 to slide backward on the second slide groove 801, so that the limit plate 803 limits the position of the lead-acid battery, thereby preventing the lead-acid battery from falling out of the placement plate 602 during the movement of the lead-acid battery. Then the staff pushes the placement plate 602 backward into the first slide groove 601, and the placement plate 602 squeezes the block 1102 and the support rod 1101 to move downward, and the fifth elastic member 1103 is squeezed and deformed, and the block 1102 is out of contact with the slot 1104, and the staff The staff continues to push the placement plate 602 backward, the contact rod 604 squeezes the connecting frame 903 and the second connecting rod 902 backward, the third elastic member 904 is deformed, the second connecting rod 902 squeezes the rear side of the lifting rod 905 backward, the lifting rod 905 rotates, and the front side of the lifting rod 905 drives the connecting plate 702 to move downward through the connecting block 906, and the fourth elastic member 907 is squeezed and deformed, and there is no need for the staff to manually press the connecting plate 702, thereby reflecting the automation of the device. When the staff completely pushes the placement plate 602 into the first slide groove 601, the fifth elastic member 1103 drives the card block 1102 and the support The support rod 1101 is reset upward, and the block 1102 is inserted into the card slot 1104 upward. The block 1102 fixes the placement plate 602, thereby preventing the third elastic member 904 from driving the connecting frame 903 and the second connecting rod 902 to reset and pop out the placement plate 602. When the staff pulls the placement plate 602 forward, the placement plate 602 squeezes the block 1102 and the support rod 1101 to move downward again, and the fifth elastic member 1103 is deformed. The contact rod 604 no longer squeezes the connecting frame 903 and the second connecting rod 902, and the third elastic member 904 drives the connecting frame 903 and the second connecting rod 902 to reset forward. Rod 902 no longer squeezes lifting rod 905, and the fourth elastic member 907 drives the connecting block 906, the connecting plate 702 and the lifting rod 905 to reset. The staff pulls the placement plate 602 forward completely, and the placement plate 602 no longer squeezes the block 1102 and the support rod 1101 to move downward. The fifth elastic member 1103 drives the block 1102 and the support rod 1101 to reset upward, and the staff pulls the handle 1002 upward, and the handle 1002 drives the loading plate 1001 to move upward, which makes it easier for the staff to remove the lead-acid batteries in batches. After the lead-acid batteries are removed, the staff puts the loading plate 1001 back to its original place.
[0044] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A quick-release locking device for testing automotive lead-acid batteries, comprising a workbench (1), a first connecting rod (2), a clamping plate (3), a first elastic member (4) and a fixing frame (5), wherein the fixing frames (5) are connected to both left and right sides of the top of the workbench (1), the first connecting rod (2) is slidably arranged on the fixing frame (5), the inner sides of the two first connecting rods (2) are both connected to the clamping plates (3), the first connecting rod (2) is sleeved with a first elastic member (4), one end of the first elastic member (4) is connected to the clamping plate (3), and the other end of the first elastic member (4) is connected to the fixing frame (5), characterized in that: It also includes a placement mechanism (6) and a connection mechanism (7). The workbench (1) is provided with a placement mechanism (6) for placing a lead-acid battery; it includes a placement plate (602), a pull rod (603) and a contact rod (604). The workbench (1) is provided with first slide grooves (601) on both left and right sides. A placement plate (602) is slidably arranged between the two first slide grooves (601). The front side of the placement plate (602) is connected to the pull rod (603). The top and rear sides of the placement plate (602) are symmetrically connected to the contact rod (604). The contact rod (604) can move to squeeze the clamping plate (3) outward; it also includes a connection for connecting the positive and negative ports of the lead-acid battery. The connecting mechanism (7) comprises a guide rod (701), a connecting plate (702), a first screw rod (705), a guide rail (706), a clamping block (707) and a second elastic member (708). The outer sides of the two fixing frames (5) are both connected to the guide rods (701). A connecting plate (702) is slidably arranged between the two guide rods (701). The first screw rod (705) is slidably arranged in the connecting plate (702). The bottom end of the first screw rod (705) is connected to the guide rail (706). Clamping blocks (707) are slidably arranged on both sides of the guide rail (706). The second elastic member (708) is connected between the two clamping blocks (707).
2. A quick-release locking device for testing automotive lead-acid batteries according to claim 1, characterized in that: The device also includes a limiting mechanism (8) for limiting the lead-acid battery. The limiting mechanism (8) includes a second screw (802) and a limiting plate (803). The second screw (802) is threadedly arranged on the front side of the placement plate (602). The limiting plate (803) is rotatably arranged on the rear end of the second screw (802). The placement plate (602) is provided with second sliding grooves (801) on both left and right sides. The limiting plate (803) slides between the two second sliding grooves (801).
3. A quick-release locking device for testing automotive lead-acid batteries according to claim 2, characterized in that: The workbench (1) further comprises a lifting mechanism (9) for driving the connecting plate (702) to move, wherein the lifting mechanism (9) comprises a fixed plate (901), a second connecting rod (902), a connecting frame (903), a third elastic member (904), a lifting rod (905), a connecting block (906) and a fourth elastic member (907); the top rear side of the workbench (1) is connected to the fixed plate (901); the second connecting rods (902) are slidably arranged on both the front and rear sides of the fixed plate (901); the connecting frame (903) is connected between the front ends of the two second connecting rods (902); the second connecting rods (902) are sleeved with a third elastic member (904); An elastic member (904), one end of the third elastic member (904) is connected to the fixed plate (901), the other end of the third elastic member (904) is connected to the connecting frame (903), the inner sides of the two fixing frames (5) are rotatably provided with lifting rods (905), the left and right sides of the top of the connecting plate (702) are connected to connecting blocks (906), the connecting blocks (906) are slidably connected to the lifting rods (905), a fourth elastic member (907) is sleeved on the guide rod (701), one end of the fourth elastic member (907) is connected to the connecting plate (702), and the other end of the fourth elastic member (907) is connected to the fixed frame (5).
4. A quick-release locking device for testing automotive lead-acid batteries according to claim 3, characterized in that: It also includes a discharge mechanism (10) for removing the lead-acid battery, the discharge mechanism (10) including a loading plate (1001) and a handle (1002), the loading plate (1001) is placed on the top of the placement plate (602), and the top of the loading plate (1001) is connected to the left and right sides thereof.
5. A quick-release locking device for testing automotive lead-acid batteries according to claim 4, characterized in that: The invention also comprises a fixing mechanism (11) for fixing the placement plate (602), the fixing mechanism (11) comprising a support rod (1101), a clamping block (1102) and a fifth elastic member (1103); the support rod (1101) is slidably arranged at the top of the workbench (1); the clamping blocks (1102) are connected to the left and right sides of the top of the support rod (1101); the placement plate (602) is provided with clamping grooves (1104) on the left and right sides; the clamping blocks (1102) can be clamped into the clamping grooves (1104); the support rod (1101) is slidably arranged with a fifth elastic member (1103); one end of the fifth elastic member (1103) is connected to the workbench (1), and the other end of the fifth elastic member (1103) is connected to the clamping block (1102).
6. A quick-release locking device for testing automotive lead-acid batteries according to claim 5, characterized in that: It also includes a nut (704), and the nut (704) is threadedly arranged on the first screw rod (705).
Citation Information
Patent Citations
Fixing tool for battery system vibration test
CN107498478A
Convenient-to-assemble tool for processing communication cavity
CN217046176U