Locking clutch mechanism capable of sliding up and down

Abstract

The utility model discloses a clutch mechanism capable of sliding up and down and with a locking function, which belongs to the technical field of locking structures and comprises a sliding part, a locking part and a locking part, and the sliding part is sleeved on the outer side of a support rod and is mounted on a shelf frame; the sliding part comprises a cylindrical main body arranged on the outer side of the supporting rod in a sleeving mode, and an upper containing groove and a lower containing groove are formed in the top and the bottom of the cylindrical main body respectively. And when the unlocking piece is pressed, the unlocking piece can push the locking piece to be separated from the upper cover, the movement range of the movable ball is increased, the contact between the movable ball and the supporting rod is relieved, the sliding piece can freely slide on the supporting rod to adjust the height, and convenience and rapidness are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of locking structures, in particular to a clutch mechanism which can slide up and down and is locked. Background Art

[0002] In the prior art, the Chinese utility model with authorization announcement number: CN219479683U discloses a support structure for safely locking a shelf and freely adjusting the height, including a shelf fixing block located at the bottom of the corner of the shelf, a shelf support strip is arranged on the outside of the shelf fixing block, and a plurality of bayonet holes are arranged on the surface of the shelf support strip from top to bottom in sequence, the shelf support strip is installed on the inside of the box, and a self-locking buckle is installed in the middle of the shelf fixing block, and the lock buckle includes a main body plate, and a clamping block is installed near the clamping slot of the main body plate, and the clamping block is clamped in the clamping slot. In the support structure for safely locking a shelf and freely adjusting the height, the trapezoidal slide structure of the shelf support strip facilitates the height adjustment of the shelf fixing block, and solves the problem of needing to take the shelf down when adjusting the height of the shelf. The shelf buckle structure of the shelf fixing block facilitates fixing on the shelf support strip, and the self-locking function is realized by the automatic clamping and fixing of the clamping block and the clamping slot, and solves the problem of the shelf fixing block falling off.

[0003] In the prior art, the Chinese invention content of the authorization announcement number: CN113623931B discloses a refrigerator with an electric lifting shelf device, including a refrigerator body, a cold storage room and a freezer room arranged in the refrigerator body, and two sets of shelf lifting components pre-buried in the cold storage room, wherein the cold storage room is equipped with shelves; the shelf lifting components include a plurality of vertical guide rails pre-buried in the foam layer of the two side walls of the cold storage room, the side of the guide rails is slidably installed with a shelf lifting block that can move up and down in the guide rails, the side of the shelf lifting block is installed with a roller bearing, and the end of the roller bearing away from the shelf lifting block is rotatably installed with a shelf slot. This invention can lift the shelf in the cold storage room of the refrigerator, making it convenient to take out and place the items in the shelf.

[0004] There are usually three types of existing refrigerator shelf height adjustment mechanisms. One is that there are multiple groups of installation positions on the shelf bracket. When adjusting, the shelf is removed from one of the installation positions and manually installed to another position; the second is that the shelf slides on the bracket, and there are multiple stop structures on the bracket. The elastic member is engaged with the stop structure to limit the shelf to stay in the required gear position; the third is to use a motor-driven transmission mechanism to drive the shelf to rise and fall, including a screw mechanism, a rope mechanism or a gear rack mechanism. The first mechanism requires taking the items off the shelf and relocating the shelf. The operation is cumbersome and there are only a limited number of gears; the second mechanism can be directly raised and lowered without removing the items, but there is also the problem of few gears, and because there is a stop structure on the sliding bracket at the same time, the sliding is not smooth, and it is difficult for the left and right brackets to coordinate and have poor synchronization; the third mechanism is complex, large in size and high in cost, and the motor noise is loud during adjustment. Utility Model Content

[0005] The purpose of the utility model is to provide a clutch mechanism that can slide up and down with a lock, wherein the locking member is supported by a first supporting spring inside the sliding member, and then the movable ball is pressed to fit the support rod in the storage hole to stably limit the shelf frame on the support rod, and then the locking member can be moved in the upper cover by pressing the unlocking member, and the position of the movable ball is adjusted to make the movable ball retract into the storage hole, thereby releasing the locking structure between the sliding member and the support rod, and the height can be freely adjusted to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a clutch mechanism that can slide up and down with a lock, comprising: a support rod; a sliding member sleeved on the outside of the support rod; the sliding member comprises a cylindrical body sleeved on the outside of the support rod, the top and bottom of the cylindrical body are respectively provided with an upper receiving groove and a lower receiving groove, and the upper receiving groove and the lower receiving groove are respectively clamped with an upper cover and a lower cover;

[0007] The inner cavities of the upper receiving groove and the lower receiving groove are respectively provided with a first supporting spring and a second supporting spring, the inner cavity of the lower receiving groove is movably provided with a spring bracket, the second supporting spring is located between the spring bracket and the cylindrical body, and the inner cavity of the upper receiving groove is movably provided with a locking member and an unlocking member;

[0008] One end of the first support spring is in contact with the locking member, and one end of the unlocking member and the spring bracket respectively penetrates the upper cover and the lower cover and extends outward.

[0009] Preferably, the locking member comprises a ball holder and a movable ball, a through receiving hole is formed around the surface of the ball holder, and the movable ball is located in the receiving hole and partially penetrates into the inner cavity of the ball holder.

[0010] Preferably, one end of the ball bracket and the spring bracket is provided with a limiting groove, and one end of the first support spring and the second support spring are respectively located in the limiting groove on the ball bracket and the spring bracket.

[0011] Preferably, the ball bearing bracket is arranged in a truncated cone shape as a whole, and the outer wall of the ball bearing bracket is fitted with the inner wall of the upper cover.

[0012] Preferably, both ends of the support rod are installed in a box body, an inner cavity of the box body is provided with a mounting hole, and the support rod is located in the mounting hole.

[0013] Preferably, it further comprises: a mounting groove, wherein the sliding member is located in an inner cavity of the mounting groove.

[0014] Preferably, the upper cover, the lower cover, the unlocking piece, the ball bracket and the spring bracket are all hollow structures, and the inner cavity sizes of the upper cover, the lower cover, the unlocking piece, the ball bracket and the spring bracket are compatible with the support rod.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model installs the sliding part on the shelf frame, and then uses the first supporting spring inside the sliding part to support the ball bracket, pushes the movable ball to contact the support rod, and locks the shelf frame. When the unlocking part is pressed, the unlocking part can push the locking part to separate from the upper cover, increase the range of movement of the movable ball, and release the contact between the movable ball and the support rod, so that the sliding part can slide freely on the support rod to adjust the height, which is convenient and quick.

[0017] 2. The utility model limits the shape of the ball support and utilizes the different horizontal distances between the center axis of the truncated cone and the outer surface to adjust the activity space of the movable ball. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of a partial three-dimensional structure of the utility model;

[0020] Figure 3 It is a schematic diagram of the cross-sectional three-dimensional structure of the sliding member of the utility model;

[0021] Figure 4 It is a schematic diagram of the unfolded three-dimensional structure of the sliding member of the utility model;

[0022] Figure 5 It is a three-dimensional structural schematic diagram of the locking member of the utility model.

[0023] Numbers in the figure: 1. shelf frame; 2. support rod; 3. sliding member; 31. cylindrical body; 32. upper storage slot; 33. lower storage slot; 34. upper cover; 35. lower cover; 36. first support spring; 37. second support spring; 38. spring bracket; 39. locking member; 391. ball bracket; 392. movable ball; 393. storage hole; 310. unlocking member; 4. limiting slot; 5. box body; 6. mounting hole; 7. mounting slot; 8. through hole. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The utility model provides a clutch mechanism which can slide up and down and is locked. The clutch mechanism can be widely used in components such as refrigerator and freezer shelves, baskets, umbrellas, computer support frames, etc. For the convenience of description, the refrigerator and freezer shelves are used as an example in this embodiment.

[0026] like Figure 1-Figure 5 As shown, the clutch mechanism that can slide up and down with a lock includes: a shelf frame 1 and a support rod 2, the shelf frame 1 is sleeved on the outside of the support rod 2; it also includes a sliding member 3 for connecting the shelf frame 1 and the support rod 2, the sliding member 3 is sleeved on the outside of the support rod 2 and installed on the shelf frame 1.

[0027] The sliding member 3 includes a cylindrical body 31 sleeved on the outer side of the support rod 2, an upper receiving groove 32 and a lower receiving groove 33 are respectively provided at the top and bottom of the cylindrical body 31, an upper cover 34 and a lower cover 35 are respectively clamped in the upper receiving groove 32 and the lower receiving groove 33, a first supporting spring 36 and a second supporting spring 37 are respectively provided in the inner cavity of the upper receiving groove 32 and the lower receiving groove 33, a spring bracket 38 is movably provided in the inner cavity of the lower receiving groove 33, the second supporting spring 37 is located between the spring bracket 38 and the cylindrical body 31, a locking member 39 and an unlocking member 310 are movably provided in the inner cavity of the upper receiving groove 32, one end of the first supporting spring 36 is in contact with the locking member 39, and one end of the unlocking member 310 and the spring bracket 38 respectively penetrate the upper cover 34 and the lower cover 35 and extend outwards;

[0028] By installing the sliding member 3 on the shelf frame 1, and then using the first supporting spring 36 inside the sliding member 3 to support the ball bracket 391, the movable ball 392 is pushed to contact the support rod 2, and the shelf frame 1 is locked. When the unlocking member 310 is pressed, the unlocking member 310 can push the locking member 39 to separate from the upper cover 34, thereby increasing the movable range of the movable ball 392 and releasing the contact between the movable ball 392 and the support rod 2, so that the sliding member 3 can slide freely on the support rod 2 to adjust the height, which is convenient and quick.

[0029] The locking member 39 includes a ball holder 391 and a movable ball 392. The surface of the ball holder 391 is provided with through receiving holes 393. The movable ball 392 is located in the receiving hole 393 and partially penetrates into the inner cavity of the ball holder 391. By setting the structure of the locking member 39, it is convenient to use the position of the ball holder 391 in the upper cover 34 to adjust the position of the movable ball 392, thereby realizing the change in the relationship between the movable ball 392 and the support rod 2.

[0030] A limiting groove 4 is provided at one end of the ball bracket 391 and the spring bracket 38, and one end of the first support spring 36 and the second support spring 37 are respectively located in the limiting groove 4 on the ball bracket 391 and the spring bracket 38. Through the setting of the limiting groove 4, it is convenient to limit the first support spring 36 and the second support spring 37 to prevent the first support spring 36 and the second support spring 37 from being displaced inside the cylindrical body 31. When the sliding member 3 is put on the support rod 2, it is easy to cause the support rod 2 to resist the first support spring 36 and the second support spring 37, resulting in the inability to install the sliding member 3.

[0031] The ball holder 391 is overall truncated cone-shaped, and the outer wall of the ball holder 391 fits with the inner wall of the upper cover 34. By limiting the shape of the ball holder 391 and utilizing the different horizontal distances between the center axis of the truncated cone and the outer surface, the movable space of the movable ball 392 is adjusted.

[0032] Both ends of the support rod 2 are installed in the box body 5. The inner cavity of the box body 5 is provided with a mounting hole 6. The support rod 2 is located in the mounting hole 6. The setting of the mounting hole 6 makes it convenient to install the support rod 2 in the box body 5, or on the refrigerator door.

[0033] Installation grooves 7 are provided on both sides of the shelf frame 1, and the sliding member 3 is located in the inner cavity of the installation groove 7. Through holes 8 connected to the installation groove 7 are provided on the top and bottom of the shelf frame 1. The unlocking member 310 and the spring bracket 38 both penetrate the through hole 8 and extend outward. Through the setting of the installation groove 7, it is not only convenient to store the sliding member 3, but also ensure the stability between the sliding member 3 and the support rod 2.

[0034] The size of the through hole 8 matches the size of the unlocking piece 310 and the spring bracket 38 to prevent the shelf frame 1 from shaking in the box body 5. By constraining the size of the through hole 8, it is avoided that the through hole 8 is too large, causing the sliding piece 3 to shake in the installation groove 7 and affecting the overall stability of the shelf frame 1.

[0035] The upper cover 34, the lower cover 35, the unlocking piece 310, the ball bracket 391 and the spring bracket 38 are all hollow structures. The inner cavity sizes of the upper cover 34, the lower cover 35, the unlocking piece 310, the ball bracket 391 and the spring bracket 38 are adapted to the support rod 2. Similarly, the sizes of the internal components of the sliding part 3 are constrained to prevent the gap between the sliding part 3 and the support rod 2 from being too large, resulting in unstable contact.

[0036] When in use, the unlocking member 310 and the spring bracket 38 are pressed to retract the unlocking member 310 and the spring bracket 38 into the cylindrical body 31, and then the sliding member 3 is moved into the installation groove 7 from both sides of the shelf frame 1. When the unlocking member 310 and the spring bracket 38 are aligned with the through hole 8, the unlocking member 310 and the spring bracket 38 are penetrated into the through hole 8 under the support of the first support spring 36 and the second support spring 37, and then the support rod 2 is inserted into the sliding member 3 in the through hole 8, and the support rod 2 is installed. When the height of the shelf frame 1 needs to be adjusted, it is only necessary to press the unlocking member 310 to squeeze the locking member 39, and the locking member 3 9 moves downward in the upper cover 34. Due to the shape of the locking member 39, the distance between the locking member 39 and the upper cover 34 increases. At this time, the movable ball 392 can slide freely in the receiving hole 393, and the height of the shelf frame 1 is adjusted at the same time. When the height adjustment is completed, the pressed unlocking member 310 is released. At this time, the unlocking member 310 and the locking member 39 move upward under the support of the first support spring 36, and the locking member 39 is re-attached in the upper cover 34 and squeezes the movable ball 392, so that the movable ball 392 moves toward the inside of the receiving hole 393 and fits on the outside of the support rod 2, so as to lock the sliding member 3, and then the shelf frame 1 is stably fixed on the support rod 2.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A clutch mechanism that can slide up and down and lock, characterized in that: include: Support rod (2); A sliding member (3) sleeved on the outside of the support rod (2); The sliding member (3) comprises a cylindrical body (31) sleeved on the outside of the support rod (2), the top and bottom of the cylindrical body (31) are respectively provided with an upper receiving groove (32) and a lower receiving groove (33), and the upper receiving groove (32) and the lower receiving groove (33) are respectively clamped with an upper cover (34) and a lower cover (35); The inner cavities of the upper receiving groove (32) and the lower receiving groove (33) are respectively provided with a first supporting spring (36) and a second supporting spring (37); the inner cavity of the lower receiving groove (33) is movably provided with a spring bracket (38); the second supporting spring (37) is located between the spring bracket (38) and the cylindrical body (31); the inner cavity of the upper receiving groove (32) is movably provided with a locking member (39) and an unlocking member (310); One end of the first support spring (36) is in contact with the locking member (39), and one end of the unlocking member (310) and the spring bracket (38) respectively penetrate the upper cover (34) and the lower cover (35) and extend outward.

2. The clutch mechanism capable of sliding up and down and locking according to claim 1, characterized in that: The locking member (39) comprises a ball support (391) and a movable ball (392); a through receiving hole (393) is provided around the surface of the ball support (391); the movable ball (392) is located in the receiving hole (393) and partially penetrates the inner cavity of the ball support (391).

3. The clutch mechanism capable of sliding up and down and locking according to claim 2, characterized in that: One end of the ball support (391) and the spring support (38) is provided with a limiting groove (4), and one end of the first support spring (36) and the second support spring (37) is respectively located in the limiting groove (4) on the ball support (391) and the spring support (38).

4. The clutch mechanism capable of sliding up and down and locking according to claim 3, characterized in that: The ball support (391) is arranged in a truncated cone shape as a whole, and the outer wall of the ball support (391) is in contact with the inner wall of the upper cover (34).

5. The clutch mechanism capable of sliding up and down and locking according to claim 4, characterized in that: Both ends of the support rod (2) are mounted in a box body (5); a mounting hole (6) is provided in the inner cavity of the box body (5), and the support rod (2) is located in the mounting hole (6).

6. The clutch mechanism capable of sliding up and down and locking according to claim 5, characterized in that: Also includes: The mounting groove (7) is provided with a sliding member (3) which is located in an inner cavity of the mounting groove (7).

7. The clutch mechanism capable of sliding up and down and locking according to claim 6, characterized in that: The upper cover (34), the lower cover (35), the unlocking piece (310), the ball bracket (391) and the spring bracket (38) are all hollow structures, and the inner cavity sizes of the upper cover (34), the lower cover (35), the unlocking piece (310), the ball bracket (391) and the spring bracket (38) are compatible with the support rod (2).

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