Clamping base and Christmas tree

Abstract

The utility model relates to a clamping base and a Christmas tree. The clamping base comprises a shell, a bearing body arranged in the shell, a clamping piece and a locking piece, wherein the clamping piece and the locking piece are installed on the bearing body. A containing groove for containing a containing object is formed in the bearing body, a plurality of sliding grooves are obliquely formed in the inner wall of the containing groove, the sliding grooves extend in the direction close to the center of the containing groove from top to bottom, a plurality of clamping pieces are arranged in the containing groove in the circumferential direction, and sliding strips capable of sliding along the sliding grooves are arranged on the clamping pieces. The locking piece is connected to the upper portion of the bearing body, an annular pressing ring is arranged at the top of the locking piece, and in the downward moving process of the locking piece, the pressing ring acts on the upper end face of the clamping piece to push the clamping piece to slide towards the center of the containing groove so as to clamp the placed object; an elastic piece is further arranged between the clamping piece and the bearing body. The Christmas tree comprises a Christmas tree body and a clamping base. The locking piece is used for pushing the clamping piece to slide towards the center of the base along the sliding groove, clamping installation of the placed object is achieved, and the disassembly and assembly process of the placed object on the base is simplified.

Description

Technical Field

[0001] This application belongs to the technical field of object fixation, and specifically relates to a clamping base and a Christmas tree. Background Art

[0002] A Christmas tree refers to an evergreen tree decorated with candles and ornaments, and is one of the important elements of Christmas.

[0003] In order to reliably fix the Christmas tree and prevent it from tilting or skewing, a support base is usually installed at the bottom of the Christmas tree. However, the existing support bases for Christmas trees have the following problems: First, the connection between the main body of the Christmas tree and the base usually adopts a threaded connection, which leads to inconvenience in installation and disassembly, and also requires high strength for the threaded structure; Second, after the Christmas tree is assembled, in order to have better ornamental value, sufficient space needs to be ensured around the Christmas tree, so the space requirement is relatively high. Summary of the Utility Model

[0004] The purpose of this application is to provide a clamping base and a Christmas tree, which utilize the sliding fit structure between the clamping member and the carrier to realize the clamping installation of the placed object, simplify the disassembly and assembly process of the placed object on the base, and further increase the rotation function of the base, so as to ensure the display of the placed object and improve the ornamental performance of the placed object in a limited space.

[0005] In order to achieve the above purpose, the technical solution adopted in this application is: A clamping base includes a housing, a carrier arranged in the housing, a clamping member and a locking member installed on the carrier; a placement groove for accommodating the placed object is arranged in the carrier, and a plurality of sliding grooves are obliquely arranged on the inner wall of the placement groove, and the sliding grooves extend from top to bottom towards the center of the placement groove. A plurality of clamping members are arranged along the circumference in the placement groove, and sliding strips capable of sliding along the sliding grooves are arranged on the clamping members; the locking member is connected to the upper part of the carrier, and an annular pressing ring is arranged on the top of the locking member. During the downward movement of the locking member, the pressing ring acts on the upper end surface of the clamping member, pushing the clamping member to slide towards the center of the placement groove to clamp the placed object; an elastic member capable of pushing the clamping member to reset is further arranged between the clamping member and the carrier.

[0006] Further, the elastic member includes a fixing part and a bending part, the fixing part is arranged on the clamping member, and the bending part is clamped on the carrier.

[0007] Furthermore, an installation groove is arranged on the clamping member, and the fixing part of the elastic member is arranged in the installation groove.

[0008] Furthermore, a clamping groove is arranged on the carrier, and the bending part of the elastic member is clamped in the clamping groove.

[0009] As a setting manner of the carrier, the carrier is rotationally supported on the housing.

[0010] Furthermore, a first accommodation cavity is provided on the housing. A first bearing is provided below the first accommodation cavity, and a second bearing is provided above the first accommodation cavity. The carrier is rotationally installed in the first accommodation cavity through the first bearing and the second bearing.

[0011] Still further, the housing is further provided with a second accommodation cavity communicated with the first accommodation cavity. The second accommodation cavity is located below the first accommodation cavity. A transmission mechanism is installed in the second accommodation cavity, and the transmission mechanism is used to drive the carrier to rotate.

[0012] Even further, the transmission mechanism includes a motor, a first gear, and a second gear. The first gear is installed on the output shaft of the motor, and the second gear is installed at the lower end of the carrier and meshes with the first gear.

[0013] Specifically, a rotation connection portion is provided at the lower end of the carrier. The first bearing and the first gear are both installed on the rotation connection portion, and the first bearing is sleeved on the outer periphery of the rotation connection portion. The second gear is provided at the lower end of the rotation connection portion.

[0014] As another setting manner of the carrier, the carrier is fixed on the housing.

[0015] The present utility model further provides a Christmas tree, including a Christmas tree body, and the Christmas tree body is installed on the clamping base described above.

[0016] The beneficial effects of the present application are as follows: The present application uses the downward movement of the locking member to push the clamping member, so that the clamping member slides towards the center of the placement groove along the inclined chute, thereby realizing the clamping of the placed object. The overall structure is simple and easy to operate, and it can also be applicable to the clamping of placed objects with different diameters, expanding the applicable range of the device. The present application can also use the transmission mechanism to rotate the placed object together with the carrier while being clamped. When the placed object is an ornament such as a Christmas tree that needs to be displayed, it can enhance the display beauty of the ornament and save the floor space occupied by the ornament. Description of the Drawings

[0017] Figure 1 It is a schematic structural view of the clamping base provided in Embodiment 1 of the present application;

[0018] Figure 2 It is an exploded view of the clamping base provided in Embodiment 1 of the present application;

[0019] Figure 3 It is a cross-sectional view of the housing in Embodiment 1 of the present application;

[0020] Figure 4 It is a cross-sectional view of the carrier and the clamping member after assembly in Embodiment 1 of the present application;

[0021] Figure 5 It is a cross-sectional view of the carrier in Embodiment 1 of the present application;

[0022] Figure 6 It is an assembly schematic diagram of the front side of the clamping member and the elastic member in Embodiment 1 of the present application;

[0023] Figure 7 It is a structural schematic diagram of the back side of the clamping member in Embodiment 1 of the present application;

[0024] Figure 8 It is a cross-sectional view of the assembly of the transmission mechanism and the carrier in Embodiment 1 of the present application;

[0025] Figure 9 It is a cross-sectional view of the clamping base in Embodiment 1 of the present application;

[0026] Markings in the figure: 1. Housing, 11. First accommodating cavity, 12. Second accommodating cavity;

[0027] 21. Motor, 22. First gear, 23. Second gear;

[0028] 3. Carrier, 31. Threaded part, 32. Placing groove, 33. Rotating connection part, 34. Sliding groove, 35. Card slot;

[0029] 4. Locking member, 41. Pressure ring;

[0030] 51. First bearing, 52. Second bearing;

[0031] 6. Clamping member, 61. Slide bar, 62. Installation groove;

[0032] 7. Elastic member, 71. Bent part, 72. Fixed part. Detailed implementation manners

[0033] The present application will be further described in detail below with reference to the accompanying drawings and embodiments, but it is not used as a basis for any limitation of the application.

[0034] Embodiment 1: A clamping base includes a housing 1, a carrier 3, a locking member 4, a clamping member 6 and an elastic member 7. This embodiment relates to Figures 1-9 . This clamping base is used to clamp decorative objects such as Christmas trees that need to be displayed.

[0035] The housing 1 includes three or four legs that support the overall structure. A first accommodating cavity 11 is provided inside the housing 1, and the carrier 3 is installed in the first accommodating cavity 11. A placement groove 32 for accommodating the placed object is provided inside the carrier 3. The inner wall of the placement groove 32 is provided with an inclined sliding groove 34, and the sliding groove 34 inclines downward and inward towards the center of the placement groove 32. A plurality of clamping members 6 are circumferentially arranged inside the placement groove 32. The clamping members 6 are provided with sliding strips 61 for sliding cooperation with the sliding groove 34. The plurality of clamping members 6 inside the carrier 3 can slide downward along the sliding groove 34 and gradually converge towards the center of the placement groove 32. Additionally, an annular pressing ring 41 is provided at the top of the locking member 4. The locking member 4 is movably installed on the carrier 3. During the process of the locking member 4 moving downward on the carrier 3, the pressing ring 41 acts on the tops of all the clamping members 6 to push all the clamping members 6 downward, thereby clamping the placed object in the placement groove 32 and achieving clamping of the placed object. An elastic member 7 is also provided between each clamping member 6 and the carrier 3. During the unlocking process of the locking member 4 on the clamping member 6, the elastic force of the elastic member 7 is released to push the clamping member 6 to move in the reverse direction along the sliding groove 34 and reset.

[0036] As an implementation manner of the locking member 4: In this embodiment, the locking member 4 is a locking knob. A threaded portion 31 is provided on the upper part of the carrier 3, and the locking member 4 is threadedly connected to the threaded portion 31. By rotating the locking member 4, the up-and-down movement of the locking member 4 on the carrier 3 can be realized.

[0037] As other implementation manners of the locking member 4: The locking member 4 can also be connected to and locked with the carrier 3 in a pressing manner. For example, in the form of a BNC RF connector, a radially extending guide post is provided on the outer side surface of the carrier 3, and an axially extending guide groove and a circumferentially extending locking groove are provided on the locking member 4. The locking groove communicates with the guide groove. The guide groove is in sliding cooperation with the guide post. When the locking member 4 moves downward until the guide post is aligned with the locking groove, the locking member 4 is rotated again, so that the guide post enters the locking groove, thereby locking the locking member 4 axially. When unlocking, first rotate the locking member in the reverse direction. After the guide post enters the guide groove, the locking member 4 moves upward under the elastic force of the elastic member 7.

[0038] Specifically, the structure of the clamping member 6 is as Figure 6 、 7 shown. The clamping member 6 is a flat structural member, including opposite front and back surfaces. A sliding strip 61 is provided on the back surface of the clamping member 6, and the front surface of the clamping member 6 can be in fitting contact with the placed object. An installation groove 62 is also provided at the lower part of the clamping member 6, and the elastic member 7 is fixed in the installation groove 62.

[0039] Furthermore, the shape and structure of the elastic member 7 are as Figure 6As shown, the elastic member 7 includes a long strip-shaped fixing portion 72 at the upper part and a bent portion 71 at the lower part. The fixing portion 72 is arranged in the mounting groove 62 at the lower part of the clamping member 6. The bent portion 71 extends downward and is fixed on the carrier 3. Specifically, a clamping groove 35 corresponding to the bent portion 71 is arranged on the carrier 3, and the bent portion 71 is clamped in the clamping groove 35.

[0040] The connection between the elastic member 7 and the clamping member 6 can make their positions relatively fixed. The acting force of the elastic member 7 can directly act on the clamping member 6 to push the clamping member 6 to reset. Therefore, after an object is placed at the center of the carrier 3, by operating the locking member 4 to move downward, the clamping member 6 is forced to slide along the sliding groove 34 towards the center of the carrier 3 to clamp the object. At the same time, the elastic member 7 deforms and bends, which can provide a certain force feedback for the user and improve the user experience. When the locking member 4 moves upward, the elastic force of the bent portion 71 that has been bent and deformed is released, driving the clamping member 6 to move along the sliding groove 34 in a direction away from the center of the carrier 3 to realize the reset of the clamping member 6.

[0041] To ensure that the clamping member 6 can slide stably along the sliding groove 34, four sliding strips 61 are arranged on the back of each clamping member 6, and two of them are in a group. The two sliding strips 61 in a group are symmetrically distributed about the center line of the clamping member 6, and the two groups of sliding strips 61 are arranged vertically. Correspondingly, four sliding grooves 34 are arranged in the placing groove 32 corresponding to each clamping member 6.

[0042] As a specific implementation manner of the carrier 3: the carrier 3 in this embodiment is rotatably supported in the first accommodating cavity 11 of the housing 1.

[0043] To facilitate the rotation of the carrier 3 in the first accommodating cavity 11, the carrier 3 can be rotatably installed in the first accommodating cavity 11 through a bearing assembly. As Figure 3 、 9 shown, a step for bearing the bearing assembly (not shown in the figure) is arranged in the housing 1. The bearing assembly includes a first bearing 51 and a second bearing 52. The first bearing 51 is arranged below the first accommodating cavity 11 and is used to sleeved on the lower part of the carrier. The second bearing 52 of the carrier is installed above the first accommodating cavity 11 and is used to sleeved on the upper part of the carrier 3. With the cooperation of the first bearing 51 and the second bearing 52, the carrier 3 can rotate stably.

[0044] The first bearing 51 in this application can be a tapered roller bearing. The contact angle between the rolling elements of the tapered roller bearing and the inner and outer conical surfaces is relatively large, so that when bearing heavy loads, the loads can be more evenly distributed on each rolling element, reducing the bearing pressure on a single rolling element. The first bearing 51 can better bear the load brought when the object is installed in the carrier, and has strong bearing capacity. At the same time, the second bearing 52 can adopt a cylindrical bearing, which has a lower friction coefficient and higher rotation accuracy to cooperate with the rotation of the carrier.

[0045] In a further embodiment, the housing 1 is further provided with a second accommodating cavity 12 communicating with the first accommodating cavity 11, and the second accommodating cavity 12 is located below the first accommodating cavity 11. The first bearing 51 is located between the second accommodating cavity 12 and the first accommodating cavity 11.

[0046] The rotation of the carrier 3 can be manually pushed. Alternatively, the rotation of the carrier 3 is driven by a corresponding transmission mechanism.

[0047] In this embodiment, a transmission mechanism is provided in the second accommodating cavity 12, and the transmission mechanism is used to drive the carrier 3 to rotate at a set speed.

[0048] Specifically, as Figure 8 shown, the transmission mechanism includes a motor 21, a first gear 22 and a second gear 23. The first gear 22 is connected to the output shaft of the motor 21, and the first gear 22 meshes with the second gear 23. It can be Figure 9 seen that the first bearing 51 is sleeved on the rotating connection portion 33 at the lower part of the carrier 3, and the lower end of the rotating connection portion 33 of the carrier 3 is simultaneously connected to the second gear 23. The second gear 23 is located below the first bearing 51. With the transmission of the gears, the carrier 3 is driven to rotate between the first bearing 51 and the second bearing 52, and at the same time, it does not affect the clamping force between the clamping member 6 and the placed object. For placed objects such as Christmas trees and other decorative products, the carrier 3 can drive the placed object to rotate slowly, improving the display effect and the user's sensory experience.

[0049] Embodiment 2: In this embodiment, the setting of the transmission mechanism is cancelled on the basis of Embodiment 1, and the carrier is fixed in the housing, and other settings are the same as those in Embodiment 1. At this time, the clamping base can be used for clamping non-decorative products, and such products do not need to be rotated and displayed after being fixed. For example, it can be used as the base of a floor lamp for clamping the lamp post.

[0050] Embodiment 3: A Christmas tree includes a Christmas tree body and the clamping base described in Embodiment 1. The lower part of the Christmas tree body is clamped in the clamping base, and the transmission mechanism of the clamping base drives the carrier to rotate at a certain speed, improving the ornamental value of the Christmas tree and saving the placement space of the Christmas tree. The above embodiments are only used to illustrate the technical solutions of the present application and are not intended to limit it. Those of ordinary skill in the art should understand that the specific implementation manners of the present application can be modified or equivalently replaced with reference to the above embodiments, and any modifications or equivalent replacements that do not depart from the spirit and scope of the present application are within the scope of the claims pending for approval of the application.

Claims

1. A clamping base, characterized in that: It comprises a housing, a carrier arranged in the housing, and a clamping member and a locking member installed on the carrier; The carrier is provided with a placement groove for accommodating the placed objects, the inner wall of the placement groove is obliquely provided with a plurality of slide grooves, the slide grooves extend from top to bottom in a direction close to the center of the placement groove, a plurality of clamping members are circumferentially arranged in the placement groove, and the clamping members are provided with slide bars that can slide along the slide grooves; The locking piece is connected to the upper part of the carrier, and an annular pressure ring is arranged on the top of the locking piece. During the downward movement of the locking piece, the pressure ring acts on the upper end surface of the clamping piece, pushing the clamping piece to slide toward the center of the placement groove to clamp the placed object; an elastic piece that can push the clamping piece to reset is also arranged between the clamping piece and the carrier.

2. The clamping base according to claim 1, characterized in that: The elastic member comprises a fixing portion and a bending portion, wherein the fixing portion is arranged on the clamping member, and the bending portion is clamped on the supporting body.

3. The clamping base according to claim 2, characterized in that: The clamping member is provided with a mounting groove, in which the fixing portion of the elastic member is arranged; the supporting body is provided with a clamping groove, in which the bending portion of the elastic member is clamped.

4. The clamping base according to any one of claims 1 to 3, characterized in that: The bearing body is rotatably supported on the shell.

5. The clamping base according to claim 4, characterized in that: The shell is provided with a first accommodating cavity, a first bearing is provided below the first accommodating cavity, a second bearing is provided above the first accommodating cavity, and the carrier is rotatably mounted in the first accommodating cavity via the first bearing and the second bearing.

6. The clamping base according to claim 5, characterized in that: The shell is further provided with a second accommodating chamber communicated with the first accommodating chamber, the second accommodating chamber is located below the first accommodating chamber, a transmission mechanism is installed in the second accommodating chamber, and the transmission mechanism is used to drive the carrier to rotate.

7. The clamping base according to claim 6, characterized in that: The transmission mechanism includes a motor, a first gear and a second gear. The first gear is mounted on the output shaft of the motor, and the second gear is mounted on the lower end of the carrier and meshes with the first gear.

8. The clamping base according to claim 7, characterized in that: A rotating connection part is arranged at the lower end of the carrier, the first bearing sleeve is arranged on the outer periphery of the rotating connection part, and the second gear is arranged at the lower end of the rotating connection part.

9. The clamping base according to any one of claims 1 to 3, characterized in that: The carrier is fixed on the housing.

10. A Christmas tree, comprising a Christmas tree body, characterized in that: The Christmas tree body is mounted on a clamping base as described in any one of claims 1-9.

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