Sleeve and Christmas tree base

Abstract

The utility model provides a casing pipe and a Christmas tree base, and belongs to the technical field of festival dress-up, the casing pipe comprises a casing pipe body, two ends of the casing pipe body are respectively provided with a first connecting cavity and a second connecting cavity which are used for installing a Christmas tree main rod, and the first connecting cavity and the second connecting cavity have the same cross section shape but different cross section perimeters. The sleeve body is arranged on the base, contraction parts are arranged at the two ends of the sleeve body, one end of the sleeve body is inserted into the base, a Christmas tree main rod is installed at the other end of the sleeve body, and the contraction part at the other end of the sleeve body is connected with a fixed contraction piece on the base; the Christmas tree connecting device has the advantages that the cross sections of the first connecting cavity and the second connecting cavity are similar in shape but different in size, so that the first connecting cavity and the second connecting cavity can be used for mounting Christmas tree main bodies of different sizes respectively, Christmas tree main rods of different sizes can be mounted only by turning the direction of the sleeve, the sleeve does not need to be replaced, and the Christmas tree connecting device is convenient to use. The use is more convenient, and the use cost is lower.

Description

Technical Field

[0001] The utility model belongs to the technical field of festival decoration, and in particular relates to a sleeve and a Christmas tree base. Background Art

[0002] Christmas is a traditional festival in the West. It is a common way to decorate Christmas trees during Christmas. Christmas trees are divided into real trees and artificial trees. Real trees are made of trees of the genus Abies in the Pinaceae family, while artificial trees are made by artificial synthesis. Whether it is a real tree or an artificial tree, it needs a Christmas tree foot to fix it.

[0003] In traditional Christmas tree feet, three, four or more handles are generally used to fix the Christmas tree in the tree foot cavity, and a center alignment structure is set at the bottom of the tree foot cavity, so that the Christmas tree is firmly and vertically fixed in the Christmas tree foot, which is inconvenient to install. In this regard, publication number CN219742395U discloses a quick-lock Christmas tree foot, which utilizes a locking piece to cooperate with a locking piece. The Christmas tree can be fixed or unlocked by tightening or loosening the locking piece. The Christmas tree can be fixed with one component. However, in the above patent, in order to adapt to Christmas tree main poles of different diameters, multiple locking pieces of different diameters are required, which increases the number of parts of the Christmas tree. For users, the placement of multiple different parts also requires space. When they want to use them, they cannot find them at the first time, and the user experience is not good. Utility Model Content

[0004] The utility model aims to solve the above problems in the prior art and proposes a sleeve with two ends capable of accommodating main poles of Christmas trees of different sizes.

[0005] The purpose of the utility model can be achieved through the following technical solutions: a casing, comprising:

[0006] A sleeve body, wherein the two ends of the sleeve body are respectively provided with a first connecting cavity and a second connecting cavity for installing a main pole of a Christmas tree, the first connecting cavity and the second connecting cavity have the same cross-sectional shape but different cross-sectional circumferences, and both ends of the sleeve body are provided with a contraction portion, one end of the sleeve body is inserted into the base, and the other end of the sleeve body is installed with the main pole of the Christmas tree, and the contraction portion on the other end of the sleeve body is connected to the fixed contraction piece on the base, and the other end of the sleeve body is tightened to achieve fixation between the main pole of the Christmas tree and the base.

[0007] In the above-mentioned sleeve, the contraction portion includes a first contraction section arranged at the end of the cavity wall of the first connecting cavity and a second contraction section arranged at the end of the cavity wall of the second connecting cavity, the first contraction section includes at least two first contraction blocks that can be close to each other, and a contraction gap is arranged between each adjacent first contraction block, and a first contraction cavity connected to the first connecting cavity is formed between multiple first contraction blocks; the second contraction section includes at least two second contraction blocks that can be close to each other, and a contraction gap is arranged between each adjacent second contraction block, and a second contraction cavity connected to the second connecting cavity is formed between multiple second contraction blocks.

[0008] In the above-mentioned sleeve, a partition is fixedly provided in the sleeve body, and the partition realizes isolation between the first connecting cavity and the second connecting cavity.

[0009] In the above-mentioned sleeve, guide blocks are fixedly provided at both end surfaces of the partition, and a first accommodating space for installing the end of the main pole of the Christmas tree is formed between the cavity wall of the first connecting cavity and the corresponding guide block; a second accommodating space for installing the end of the main pole of the Christmas tree is formed between the cavity wall of the second connecting cavity and the corresponding guide block.

[0010] In the above-mentioned sleeve, the outer ends of the first shrinking block and the second shrinking block are provided with inclined shrinking surfaces, and the inclined shrinking surfaces gradually shrink inwards in a direction away from the sleeve body.

[0011] A Christmas tree base comprises a sleeve and a base body, wherein a mounting tube is arranged on the base body, and a fixed shrinkage piece is arranged on the mounting tube. When one end of the sleeve is inserted into the mounting tube, the fixed shrinkage piece is connected to the shrinkage part on the sleeve.

[0012] In the above-mentioned Christmas tree base, a plurality of first limiting grooves are arranged on the outer cavity wall of the first connecting cavity on the sleeve, a plurality of second limiting grooves are arranged on the outer cavity wall of the second connecting cavity on the sleeve, and a limiting portion is arranged in the mounting tube. When one end of the sleeve is inserted into the base, the groove wall of the first limiting groove is connected to the limiting portion on the base; when the other end of the sleeve is inserted into the base, the groove wall of the second limiting groove is connected to the limiting portion on the base.

[0013] In the above-mentioned Christmas tree base, the first limiting grooves are distributed around the outer wall of the first connecting cavity, and the length direction of each of the first limiting grooves is parallel to the length direction of the sleeve, the second limiting grooves are distributed around the outer wall of the second connecting cavity, and the length direction of the second limiting grooves is parallel to the length direction of the sleeve, and each of the first limiting grooves and each of the second limiting grooves are staggered.

[0014] In the above-mentioned Christmas tree base, the fixed shrinkage part includes a shrinkage sleeve, the outer tube wall of the mounting tube is provided with an external thread, and the shrinkage sleeve is provided with an internal thread. When the shrinkage sleeve is threadedly fixed to the mounting tube, the shrinkage sleeve squeezes and shrinks the corresponding shrinkage part.

[0015] In the above-mentioned Christmas tree base, a shrink ring is fixedly arranged on the shrink sleeve, and the shrink ring is gradually inclined inwards in a direction away from the shrink sleeve.

[0016] Compared with the prior art, the utility model

[0017] (1) A first connecting cavity and a second connecting cavity are respectively provided at both ends of the sleeve body, and the cross-sectional shapes of the first connecting cavity and the second connecting cavity are the same, but the cross-sectional perimeters are different. That is, the cross-sectional shapes of the first connecting cavity and the second connecting cavity are similar, but the sizes are different, so that the first connecting cavity and the second connecting cavity can be used to install Christmas tree bodies of different sizes respectively. For the installation of Christmas tree main poles of different sizes, it is only necessary to turn the direction of the sleeve without replacing the sleeve, which is more convenient to use and has a relatively low cost.

[0018] (2) In order to facilitate the installation of the main pole of the Christmas tree and ensure the stability of the position of the main pole of the Christmas tree in the connecting cavity, guide blocks are provided on both end surfaces of the partition. The outer cross-section of the guide block is an inclined guide surface. When the main pole of the Christmas tree is inserted into the connecting cavity, the end of the main pole of the Christmas tree extends into the corresponding accommodation space, and the guide block cooperates with the cavity wall of the connecting cavity to clamp and fix the main pole of the Christmas tree. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is one of the three-dimensional structural diagrams of the casing;

[0020] Figure 2 yes Figure 1 A schematic cross-sectional structure diagram of ;

[0021] Figure 3 This is the second schematic diagram of the three-dimensional structure of the casing;

[0022] Figure 4 It is a three-dimensional structural diagram of the Christmas tree base;

[0023] Figure 5 This is a schematic diagram of the connection between the Christmas tree base and the casing;

[0024] Figure 6 It is a three-dimensional structural schematic diagram of a fixed contraction member;

[0025] Figure 7 This is a schematic diagram of the connection between the main pole of the Christmas tree and the base of the Christmas tree.

[0026] In the figure, the sleeve body 100; the first connecting cavity 101; the second connecting cavity 102; the first shrinking block 103; the second shrinking block 104; the shrinking gap 105; the partition 106; the guide block 107; the first accommodating space 108; the second accommodating space 109; the first limiting groove 110; the second limiting groove 111; the base body 200; the mounting tube 201; the fixed shrinking piece 202; the shrinking sleeve 203; the shrinking ring 204; the roller 205; the Christmas tree main pole 206; the limiting part 207. DETAILED DESCRIPTION

[0027] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0028] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0029] like Figure 1 and Figure 2 As shown, a sleeve comprises:

[0030] The sleeve body 100 has a first connecting cavity 101 and a second connecting cavity 102 for installing the Christmas tree main pole 206 at both ends of the sleeve body 100, the first connecting cavity 101 and the second connecting cavity 102 have the same cross-sectional shape but different cross-sectional circumferences, and both ends of the sleeve body 100 are provided with a contraction portion, one end of the sleeve body 100 is inserted into the base, and the Christmas tree main pole 206 is installed on the other end of the sleeve body 100, and the contraction portion on the other end of the sleeve body 100 is connected to the fixed contraction piece 202 on the base, and the other end of the sleeve body 100 is tightened to achieve fixation between the Christmas tree main pole 206 and the base.

[0031] In this embodiment, in order to adapt to the connection of Christmas tree main poles 206 of various sizes, a first connecting cavity 101 and a second connecting cavity 102 are respectively provided at both ends of the sleeve body, and the cross-sectional shape of the first connecting cavity 101 and the second connecting cavity 102 is the same, but the cross-sectional circumference is different, that is, the cross-sectional shape of the first connecting cavity 101 and the second connecting cavity 102 is similar, but the size is different, so that the first connecting cavity 101 and the second connecting cavity 102 can be used to install Christmas tree bodies of different sizes respectively. For the installation of Christmas tree main poles 206 of different sizes, it is only necessary to reverse the direction of the sleeve without replacing the sleeve, which is more convenient to use and has a relatively low cost.

[0032] Preferably, the contraction portion includes a first contraction section arranged at the end of the cavity wall of the first connecting cavity 101 and a second contraction section arranged at the end of the cavity wall of the second connecting cavity 102, the first contraction section includes at least two first contraction blocks 103 that can be close to each other, and a contraction gap 105 is arranged between each adjacent first contraction block 103, and a first contraction cavity connected to the first connecting cavity 101 is formed between multiple first contraction blocks 103; the second contraction section includes at least two second contraction blocks 104 that can be close to each other, and a contraction gap 105 is arranged between each adjacent second contraction block 104, and a second contraction cavity connected to the second connecting cavity 102 is formed between multiple second contraction blocks 104.

[0033] In this embodiment, the first shrinkage cavity has the same shape and size as the first connecting cavity 101, the second shrinkage cavity has the same shape and size as the second connecting cavity 102, and a shrinkage gap 105 is provided between two adjacent first shrinkage blocks 103, which cooperate with the fixed shrinkage piece 202 on the base, and the fixed shrinkage piece 202 squeezes the first shrinkage block 103 to shrink toward the direction of the Christmas tree main pole 206, clamps the Christmas tree main pole 206, and ensures the connection between the Christmas tree main pole 206 and the base; the operating principle of the second shrinkage block 104 is the same as above.

[0034] Further preferably, a partition 106 is fixedly disposed inside the sleeve body 100 , and the partition 106 isolates the first connecting cavity 101 from the second connecting cavity 102 .

[0035] In this embodiment, because the first connecting cavity 101 and the second connecting cavity 102 have the same shape but different sizes, when the Christmas tree main pole 206 is fixed to the connecting cavity with a smaller size, it may extend out of the connecting cavity with a larger size. Therefore, a partition 106 is provided in the sleeve body 100. Preferably, the partition 106 is provided at a position that can evenly divide the sleeve along the length direction and isolate it by using the partition 106. Then, no matter which end of the sleeve the Christmas tree main pole 206 is inserted into, the Christmas tree main pole 206 will not extend out of the sleeve.

[0036] It is worth mentioning that if the bottom of the mounting tube 201 on the base is closed, then the partition 106 may not be provided in the sleeve, and the mounting tube 201 can be used to support the main pole 206 of the Christmas tree.

[0037] Preferably, guide blocks 107 are fixedly provided at both end surfaces of the partition 106, and a first accommodating space 108 for installing the end of the Christmas tree main pole 206 is formed between the cavity wall of the first connecting cavity 101 and the corresponding guide block 107; a second accommodating space 109 for installing the end of the Christmas tree main pole 206 is formed between the cavity wall of the second connecting cavity 102 and the corresponding guide block 107.

[0038] It should be noted that, in order to reduce the weight of the Christmas tree main pole 206, the general Christmas tree main pole 206 is hollow; and the guide block 107 is formed by combining a plurality of adjacent mounting blocks with gaps provided therebetween.

[0039] In this embodiment, in order to facilitate the installation of the Christmas tree main pole 206 and ensure the stability of the position of the Christmas tree main pole 206 in the connecting cavity, guide blocks 107 are provided on both end surfaces of the partition 106. The outer cross-section of the guide block 107 is an inclined guide surface. When the Christmas tree main pole 206 is inserted into the connecting cavity, the end of the Christmas tree main pole 206 extends into the corresponding accommodating space, and the guide block 107 cooperates with the cavity wall of the connecting cavity to clamp and fix the Christmas tree main pole 206.

[0040] Further preferably, the outer ends of the first shrinkage block 103 and the second shrinkage block 104 are provided with inclined shrinkage surfaces, which gradually shrink inward in the direction away from the sleeve body. As the fixed shrinkage piece 202 moves, the fixed shrinkage piece 202 gradually contacts the inclined shrinkage surface on the shrinkage block to tighten and fix it.

[0041] like Figure 3-Figure 7 As shown, a Christmas tree base includes the above-mentioned sleeve and a base body 200. A mounting tube 201 is provided on the base body 200. A fixed shrinkage piece 202 is provided on the mounting tube 201. When one end of the sleeve is inserted into the mounting tube 201, the fixed shrinkage piece 202 is connected to the shrinkage part on the sleeve.

[0042] Preferably, a plurality of first limiting grooves 110 are arranged on the outer cavity wall of the first connecting cavity 101 on the sleeve, a plurality of second limiting grooves 111 are arranged on the outer cavity wall of the second connecting cavity 102 on the sleeve, and a limiting portion 207 is arranged in the mounting tube 201. When one end of the sleeve is inserted into the base, the groove wall of the first limiting groove 110 is connected to the limiting portion 207 on the base; when the other end of the sleeve is inserted into the base, the groove wall of the second limiting groove 111 is connected to the limiting portion 207 on the base.

[0043] In this embodiment, in order to prevent the sleeve from rotating relative to the base when on the base, a limit block is provided to abut against a limit portion 207 in the mounting tube 201. When the end of the sleeve extends into the mounting tube 201, the limit portion 207 extends into the corresponding limit groove to limit the horizontal movement of the sleeve.

[0044] It is worth mentioning that the limit groove extends along the axial direction of the sleeve and an opening is provided at its outer end. Since the cavity size of one of the connecting cavities is relatively small, taking the first connecting cavity 101 as an example, the position of the limit groove must ensure contact with the limit piece in the base, so the cavity wall of the connecting cavity is relatively thick, but this is not conducive to the shrinkage of the shrinkage block. Therefore, in the present application, the cavity wall of the connecting cavity is set as small as possible, and reinforcing ribs are provided outside the cavity wall.

[0045] Further preferably, the first limiting grooves 110 are distributed around the outer wall of the first connecting cavity 101, and the length direction of each first limiting groove 110 is parallel to the length direction of the sleeve, the second limiting grooves 111 are distributed around the outer wall of the second connecting cavity 102, and the length direction of the second limiting grooves 111 is parallel to the length direction of the sleeve, and each first limiting groove 110 and each second limiting groove 111 are staggered.

[0046] In this embodiment, the setting of the limit groove is opened on the cavity wall, which will reduce the thickness of the cavity wall. Therefore, in order to ensure the strength of the entire sleeve, the first limit groove 110 and the second connection groove are staggered along the outer circumference of the sleeve, such as Figure 1 As shown, the number of the first limiting grooves 110 and the number of the second limiting grooves 111 are both two, the two first limiting grooves 110 are symmetrically arranged, the two second limiting grooves 111 are symmetrically arranged, and the two edge lines of each first limiting groove 110 respectively coincide with the extension direction of one of the edge lines of the two adjacent first limiting grooves 110.

[0047] Further preferably, the fixed shrinking member 202 includes a shrinking sleeve 203, an outer tube wall of the mounting tube 201 is provided with an external thread, and an internal thread is provided inside the shrinking sleeve 203, when the shrinking sleeve 203 is threadedly fixed to the mounting tube 201, the shrinking sleeve 203 squeezes and shrinks the corresponding shrinking part.

[0048] In this embodiment, as the shrink sleeve 203 is threadedly connected to the mounting tube 201, the shrink sleeve 203 squeezes the shrink block to tighten, and because the shrink sleeve 203 abuts against the outer wall of the sleeve, during the threaded connection process of the shrink sleeve 203, the shrink sleeve 203 will also fix the sleeve, thereby achieving the fixation of the mounting tube 201, the Christmas tree main pole 206 and the sleeve.

[0049] Further preferably, a shrink ring 204 is fixedly provided on the shrink sleeve 203 , and the shrink ring 204 is gradually inclined inwardly in a direction away from the shrink sleeve 203 .

[0050] In this embodiment, a shrink ring 204 is additionally provided on the shrink sleeve 203. During the abutment between the shrink sleeve 203 and the end of the sleeve, the end of the sleeve may extend out of the shrink sleeve 203. The setting of the shrink ring 204 can not only abut and shrink the sleeve, but also surround and protect the protruding end of the sleeve.

[0051] It is worth mentioning that a roller 205 is provided on the support foot of the base, and the roller 205 is detachable from the support foot, and a friction block is also provided at the bottom of the support foot. It should be noted that in the present utility model, the descriptions such as "first", "second", "one", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. The terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral body; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0052] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0053] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A casing, characterized in that: include: A sleeve body, wherein the two ends of the sleeve body are respectively provided with a first connecting cavity and a second connecting cavity for installing a main pole of a Christmas tree, the first connecting cavity and the second connecting cavity have the same cross-sectional shape but different cross-sectional circumferences, and both ends of the sleeve body are provided with a contraction portion, one end of the sleeve body is inserted into the base, and the other end of the sleeve body is installed with the main pole of the Christmas tree, and the contraction portion on the other end of the sleeve body is connected to the fixed contraction piece on the base, and the other end of the sleeve body is tightened to achieve fixation between the main pole of the Christmas tree and the base.

2. A sleeve according to claim 1, characterized in that: The contraction portion includes a first contraction section arranged at the end of the cavity wall of the first connecting cavity and a second contraction section arranged at the end of the cavity wall of the second connecting cavity, the first contraction section includes at least two first contraction blocks that can be close to each other, and a contraction gap is arranged between each adjacent first contraction block, and a first contraction cavity connected to the first connecting cavity is formed between multiple first contraction blocks; the second contraction section includes at least two second contraction blocks that can be close to each other, and a contraction gap is arranged between each adjacent second contraction block, and a second contraction cavity connected to the second connecting cavity is formed between multiple second contraction blocks.

3. A sleeve according to claim 1, characterized in that: A partition is fixedly arranged in the sleeve body, and the partition realizes isolation between the first connecting cavity and the second connecting cavity.

4. A sleeve according to claim 3, characterized in that: Guide blocks are fixedly provided at both end surfaces of the partition, and a first accommodating space for installing the end of the main pole of the Christmas tree is formed between the cavity wall of the first connecting cavity and the corresponding guide block; a second accommodating space for installing the end of the main pole of the Christmas tree is formed between the cavity wall of the second connecting cavity and the corresponding guide block.

5. A sleeve according to claim 2, characterized in that: The outer ends of the first shrinking block and the second shrinking block are provided with inclined shrinking surfaces, and the inclined shrinking surfaces gradually shrink inwards in a direction away from the sleeve body.

6. A Christmas tree base, characterized in that: It comprises a sleeve as described in any one of claims 1-5, and also comprises a base body, a mounting tube is arranged on the base body, a fixed shrinkage piece is arranged on the mounting tube, and when one end of the sleeve is inserted into the mounting tube, the fixed shrinkage piece is connected to the shrinkage part on the sleeve.

7. A Christmas tree base according to claim 6, characterized in that: A plurality of first limiting grooves are arranged on the outer cavity wall of the first connecting cavity on the sleeve, a plurality of second limiting grooves are arranged on the outer cavity wall of the second connecting cavity on the sleeve, and a limiting portion is arranged in the mounting tube. When one end of the sleeve is inserted into the base, the groove wall of the first limiting groove is connected to the limiting portion on the base; when the other end of the sleeve is inserted into the base, the groove wall of the second limiting groove is connected to the limiting portion on the base.

8. A Christmas tree base according to claim 7, characterized in that: The first limiting grooves are distributed around the outer wall of the first connecting cavity, and the length direction of each of the first limiting grooves is parallel to the length direction of the sleeve. The second limiting grooves are distributed around the outer wall of the second connecting cavity, and the length direction of the second limiting grooves is parallel to the length direction of the sleeve, and each of the first limiting grooves and each of the second limiting grooves are staggered.

9. A Christmas tree base according to claim 6, characterized in that: The fixed shrinking part includes a shrinking sleeve, an outer tube wall of the mounting tube is provided with an external thread, and an inner thread is provided inside the shrinking sleeve. When the shrinking sleeve is threadedly fixed to the mounting tube, the shrinking sleeve squeezes and shrinks the corresponding shrinking part.

10. A Christmas tree base according to claim 9, characterized in that: A shrink ring is also fixedly arranged on the shrink sleeve, and the shrink ring is gradually inclined inwards in a direction away from the shrink sleeve.

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