Automatic locking device for centrifuge door cover
Patent Information
- Application Number
- CN202522255881.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-24
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-10-24
AI Technical Summary
Most existing centrifuge door covers and casings use manual fasteners, which makes operation time-consuming and labor-intensive.
Design an automatic locking device comprising a locking plate, a locking block, a locking rod, and a connecting spring. The automatic locking of the door cover is achieved through the sliding connection between the locking plate and the locking block and the inclined groove structure.
It achieves automatic locking between the door cover and the machine body, improving ease of use and reducing the need for manual operation.
Smart Images

Figure CN224926257U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of centrifuge door cover locking technology, and in particular relates to an automatic locking device for centrifuge door cover. Background Technology
[0002] A centrifuge is a machine that uses centrifugal force to separate the components of a mixture of liquids and solid particles or liquids. Centrifuges are mainly used to separate solid particles from liquids in suspensions, or to separate two immiscible liquids with different densities in emulsions; they can also be used to remove liquid from wet solids, such as in a washing machine to spin-dry wet clothes; special high-speed tubular centrifuges can also separate gas mixtures of different densities; taking advantage of the different settling velocities of solid particles of different densities or sizes in liquids, some sedimentation centrifuges can also classify solid particles according to density or particle size.
[0003] In the prior art, the locking device between the centrifuge lid and the casing is mostly locked by manual fasteners, which is time-consuming and labor-intensive. Therefore, an automatic locking device for centrifuge door lid is proposed to solve the above problems. Utility Model Content
[0004] The purpose of this invention is to provide an automatic locking device for centrifuge door covers to solve existing problems.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0006] This utility model relates to an automatic locking device for a centrifuge door cover, comprising a body and a door cover. The door cover is movably mounted on the upper surface of the body. A locking block is welded to one side of the body, and a connecting plate is welded to one side of the door cover. The position of the connecting plate corresponds to the position of the locking block. A locking plate is welded to the lower surface of the connecting plate. A third mounting groove is formed on the upper surface of the locking block. One end of the locking plate extends into the third mounting groove, and the locking plate is slidably connected to the third mounting groove. A first mounting groove is formed on the upper surface of the connecting plate, and a second mounting groove is formed inside the locking plate.
[0007] Furthermore, the interior of the first mounting groove is connected to the interior of the second mounting groove, and positioning holes are provided on both opposite surfaces of the locking block, with the two positioning holes connected to the interior of the third mounting groove.
[0008] Furthermore, guide rods are welded inside both the first and second mounting slots, and two push plates are slidably mounted on the periphery of the two guide rods. Two guide holes are opened on one surface of each of the two push plates, and the positions of the two guide holes correspond to the positions of the two guide rods.
[0009] Furthermore, the two guide holes are slidably connected to the guide rod, the lower ends of the two push plates are slidably connected to the bottom surface inside the second mounting groove, the upper ends of the two push plates extend to the outside of the connecting plate through the first mounting groove, and the upper ends of the two push plates are engaged with a retaining plate.
[0010] Furthermore, through holes are provided on both opposing surfaces inside the second mounting groove, and the two through holes are connected to the inside of the third mounting groove. The positions of the two through holes correspond to the positions of the two positioning holes.
[0011] Furthermore, two inclined grooves are formed on the upper surface of the third mounting groove, and the lower ends of the two inclined grooves are connected to the positioning holes.
[0012] Furthermore, a connecting spring is welded to one surface of the lower end of each of the two push plates, and a locking rod is welded to one end of each of the two connecting springs, with the two locking rods extending into the through hole.
[0013] Furthermore, the two locking rods are slidably connected to the through hole, and one end of the two locking rods extends to the outside of the locking block through the positioning hole, and the two locking rods are slidably connected to the positioning hole.
[0014] This utility model has the following beneficial effects:
[0015] This invention utilizes a locking plate, locking block, and locking rod structure. When the door cover and body are closed, the lower end of the locking plate slides into the third mounting groove. After the lower end of the locking plate enters, one end of each of the two locking rods contacts the inclined groove. As the locking plate enters, the locking rods retract into the through hole following the inclination of the inclined groove, causing one end of the locking rod to move into the second mounting groove and compress the connecting spring. After the locking plate is fully inserted into the third mounting groove, the locking rods move to the positioning hole along with the inclined groove. At this point, the deformation and reset of the connecting spring pushes the other end of the locking rod out of the positioning hole, so that the locking plate and locking block automatically lock together without manual fastening, improving the convenience of the device during use.
[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the structure of an automatic locking device for a centrifuge door cover according to the present invention;
[0019] Figure 2 This is a right-side structural schematic diagram of an automatic locking device for a centrifuge door cover according to the present invention;
[0020] Figure 3 This is a top view schematic diagram of an automatic locking device for a centrifuge door cover according to the present invention;
[0021] Figure 4 This utility model Figure 3 A schematic diagram of the cross-sectional structure at point AA.
[0022] The attached diagram lists the components represented by each number as follows:
[0023] 1. Body; 2. Door cover; 3. Connecting plate; 4. Locking plate; 5. Locking block; 6. First mounting slot; 7. Second mounting slot; 8. Through hole; 9. Guide rod; 10. Guide hole; 11. Connecting spring; 12. Locking rod; 13. Third mounting slot; 14. Inclined groove; 15. Positioning hole; 16. Push plate; 17. Locking plate. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0025] In the description of this utility model, it should be understood that the terms "upper", "middle", "outer", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0026] Please see Figures 1-4As shown, this utility model is an automatic locking device for a centrifuge door cover, including a body 1 and a door cover 2. The door cover 2 is movably installed on the upper surface of the body 1. A locking block 5 is welded to one side of the body 1, and a connecting plate 3 is welded to one side of the door cover 2. The position of the connecting plate 3 corresponds to the position of the locking block 5. A locking plate 4 is welded to the lower surface of the connecting plate 3. A third mounting groove 13 is opened on the upper surface of the locking block 5. One end of the locking plate 4 extends into the interior of the third mounting groove 13. The locking plate 4 and the third mounting groove 13 are slidably connected. A first mounting groove 6 is opened on the upper surface of the connecting plate 3. A second mounting groove 7 is opened inside the locking plate 4. The interior of the first mounting groove 6 and the interior of the second mounting groove 7 are connected. Positioning holes 15 are opened on both opposite surfaces of the locking block 5. The two positioning holes 15 are connected to the interior of the third mounting groove 13. The locking plate 4 is a long strip plate structure with a certain thickness.
[0027] Guide rods 9 are welded inside both the first mounting groove 6 and the second mounting groove 7. Two push plates 16 are slidably mounted on the sides of the two guide rods 9. Two guide holes 10 are opened on one surface of each push plate 16. The positions of the two guide holes 10 correspond to the positions of the two guide rods 9. The two guide holes 10 are slidably connected to the guide rods 9. The lower ends of the two push plates 16 are slidably connected to the bottom surface inside the second mounting groove 7. The upper ends of the two push plates 16 extend to the outside of the connecting plate 3 through the first mounting groove 6. The upper ends of the two push plates 16 are engaged with locking plates 17. When the door cover 2 needs to be opened later, the locking plates 17 are first removed from the upper ends of the push plates 16, so that the push plates 16 can slide on the guide rods 9. Then, the two push plates 16 are pinched together to pull the connecting spring 11 to move. The connecting spring 11 drives the locking rod 12 to move and disengage from the positioning hole 15, thereby removing the locking plate 4 from the inside of the third mounting groove 13.
[0028] The second mounting groove 7 has through holes 8 on its two opposing surfaces. The two through holes 8 are connected to the interior of the third mounting groove 13. The positions of the two through holes 8 correspond to the positions of the two positioning holes 15. The upper surface of the third mounting groove 13 has two inclined grooves 14. The lower ends of the two inclined grooves 14 are connected to the positioning holes 15. The slope of the inclined grooves 14 gradually becomes steeper from top to bottom, which facilitates the sliding of the locking rod 12.
[0029] Two connecting springs 11 are welded to the lower surface of each of the two push plates 16. Each of the two connecting springs 11 has a locking rod 12 welded to one end. The two locking rods 12 extend into the through hole 8 and are slidably connected to the through hole 8. One end of the two locking rods 12 extends to the outside of the locking block 5 through the positioning hole 15 and is slidably connected to the positioning hole 15. One end of the locking rod 12 is rounded to facilitate its sliding, so that the locking plate 4 and the locking block 5 are automatically locked without manual fastening, improving the convenience of using the device.
[0030] Please see Figures 1-4 As shown, this utility model is an automatic locking device for a centrifuge door cover. Its usage is as follows: When the door cover 2 is closed to the machine body 1, the lower end of the locking plate 4 slides into the third mounting groove 13 from above. After the lower end of the locking plate 4 enters, one end of each of the two locking rods 12 contacts the inclined groove 14. As the locking plate 4 enters, the locking rods 12 follow the inclination of the inclined groove 14 and retract into the through hole 8, causing one end of the locking rods 12 to move into the second mounting groove 7 and compress the connecting spring 11. After the locking plate 4 is fully inserted into the third mounting groove 13, the locking rods 12 follow the inclination of the inclined groove 14 and retract into the through hole 8. 4. Move to the positioning hole 15. At this time, the deformation and reset of the connecting spring 11 will push the other end of the locking rod 12 out of the positioning hole 15, so that the locking plate 4 and the locking block 5 will lock automatically. When the door cover 2 needs to be opened later, first remove the retaining plate 17 from the top of the push plate 16 so that the push plate 16 can slide on the guide rod 9. Then pinch the two push plates 16 together to pull them closer, thereby pulling the connecting spring 11 to move. The connecting spring 11 drives the locking rod 12 to move and disengage from the positioning hole 15, thereby removing the locking plate 4 from the inside of the third mounting groove 13.
Claims
1. An automatic locking device for a centrifuge door cover, comprising a body (1) and a door cover (2), characterized in that: The door cover (2) is movably mounted on the upper surface of the body (1). A locking block (5) is welded to one side of the body (1), and a connecting plate (3) is welded to one side of the door cover (2). The position of the connecting plate (3) corresponds to the position of the locking block (5). A locking plate (4) is welded to the lower surface of the connecting plate (3). A third mounting groove (13) is provided on the upper surface of the locking block (5). One end of the locking plate (4) extends into the third mounting groove (13). The locking plate (4) and the third mounting groove (13) are slidably connected. A first mounting groove (6) is provided on the upper surface of the connecting plate (3), and a second mounting groove (7) is provided inside the locking plate (4).
2. The automatic locking device for a centrifuge door cover according to claim 1, characterized in that, The interior of the first mounting groove (6) is connected to the interior of the second mounting groove (7). The locking block (5) has positioning holes (15) on both opposite surfaces. The two positioning holes (15) are connected to the interior of the third mounting groove (13).
3. The automatic locking device for a centrifuge door cover according to claim 1, characterized in that, Guide rods (9) are welded inside the first mounting groove (6) and the second mounting groove (7). Two push plates (16) are slidably installed on the periphery of the two guide rods (9). Two guide holes (10) are opened on one surface of the two push plates (16). The positions of the two guide holes (10) correspond to the positions of the two guide rods (9).
4. The automatic locking device for a centrifuge door cover according to claim 3, characterized in that, The two guide holes (10) are slidably connected to the guide rod (9), the lower ends of the two push plates (16) are slidably connected to the bottom surface inside the second mounting groove (7), the upper ends of the two push plates (16) extend to the outside of the connecting plate (3) through the first mounting groove (6), and the upper ends of the two push plates (16) are engaged with a retaining plate (17).
5. The automatic locking device for a centrifuge door cover according to claim 4, characterized in that, The second mounting groove (7) has through holes (8) on both opposite surfaces. The two through holes (8) are connected to the interior of the third mounting groove (13). The positions of the two through holes (8) correspond to the positions of the two positioning holes (15).
6. The automatic locking device for a centrifuge door cover according to claim 1, characterized in that, The upper surface of the third mounting groove (13) has two inclined grooves (14), and the lower ends of the two inclined grooves (14) are connected to the positioning hole (15).
7. The automatic locking device for a centrifuge door cover according to claim 3, characterized in that, A connecting spring (11) is welded to one surface of the lower end of each of the two push plates (16), and a locking rod (12) is welded to one end of each of the two connecting springs (11). The two locking rods (12) extend into the through hole (8).
8. The automatic locking device for a centrifuge door cover according to claim 7, characterized in that, The two locking rods (12) are slidably connected to the through hole (8), and one end of the two locking rods (12) extends to the outside of the locking block (5) through the positioning hole (15). The two locking rods (12) are slidably connected to the positioning hole (15).
