WO2017041511A1

WO2017041511A1 - Novel telescopic tube assembly

Info

Publication number: WO2017041511A1
Application number: PCT/CN2016/082433
Authority: WO
Inventors: 简光锋; 高明宙; 程山东
Original assignee: 中山金稳五金零件有限公司
Priority date: 2015-09-07
Filing date: 2016-05-18
Publication date: 2017-03-16
Also published as: CN204961487U

Abstract

Disclosed is a telescopic tube assembly comprising: an inner tube (1) and a sliding module (2) fixedly connected to an end of the inner tube (1); the inner tube (1) being peripherally sleeved by an outer tube (3) capable of sliding on the sliding module (2); and the sliding module (2) comprising rolling elements (201) for the outer tube (3) to slide to realize tube extension. This product has at an end of the inner tube (1) the sliding module (2), which also can be used for connecting each inner tube (1). The inner tube (1) is peripherally sleeved by the outer tube (3) capable of sliding on the sliding module (2). The sliding module (2) is provided with multiple rolling elements (201), by means of which the outer tube (3) can slide. The rolling of the rolling elements can realize tube extension, reducing the sliding friction of the outer tube, and making tube extension easier and more convenient. With the outer tube pulled out, the product can be used as a supporting leg for various racks and has a wide application range.

Description

A new type of telescopic tube assembly

[Technical Field]

The utility model relates to a hardware component, in particular to a novel telescopic tube assembly.

【Background technique】

In the prior art, the telescopic tube is generally hardened by hard connection, that is, by the inner wall of the outer tube and the outer wall of the inner tube. In this way, the inner wall of the outer tube is in direct contact with the outer wall of the inner tube, so that a large frictional force and heat are generated. It may cause wear or deformation of the pipe and is also very inconvenient to use.

The utility model is based on this situation.

[utility content]

The purpose of the utility model is to overcome the deficiencies of the prior art and to provide a pipe assembly that realizes expansion and contraction by rolling.

The utility model is realized by the following technical solutions:

A novel telescopic tube assembly comprising an inner tube 1 and a sliding assembly 2 fixedly coupled to an end of the inner tube 1 is characterized in that the outer tube 1 is sleeved to be slidable along the sliding assembly 2 The outer tube 3, the slip assembly 2 includes a rolling member 201 for the outer tube 3 to slip to effect expansion and contraction of the tube.

The novel telescopic tube assembly as described above is characterized in that the telescopic tube assembly comprises a plurality of the inner tubes 1 and the sliding assembly 2 for connecting the inner tubes 1.

The new telescopic tube assembly as described above, characterized in that the sliding assembly 2 comprises a clamping block 203 for clamping the inner tube 1 and a fixing block 202 fixedly connected to the clamping block 203. The clamping block 203 is provided with a plurality of card slots 204 in the circumferential direction of the fixing block 202. The card slot 204 is provided with a card block 205 which is engaged with the inner wall of the card slot 204 and is clamped. The rolling member 201 The block 205 is rotatably disposed.

The new type of telescopic tube assembly as described above is characterized in that the block 205 is provided with a receiving groove 210, and the shoulders on both sides of the receiving groove 210 are provided with a pin 206 traversing the receiving groove 210. The rolling member 201 is disposed on the pin 206 and partially protrudes from the receiving groove 210.

The new telescopic tube assembly as described above is characterized in that the clamping block 203 includes a locking portion 2031 that is engaged with the inner tube 1 and a truncated portion 2032 that is engaged with the fixing block 202 and is fixed by bolting. The card slot 204 is disposed on the circular table portion 2032, and the adjacent two card slots 204 are spaced apart by a tapered platform 207 that can cooperate with the outer walls of the adjacent two of the card blocks 205. A small card slot 208 is disposed on the outer wall of the two sides of the card slot 205. The two side walls of the card slot 204 are provided with a small card slot 209 that is engaged with the small card base 208.

The new type of telescopic tube assembly as described above is characterized in that: the fixed block 202 is internally screwed with a rotating inner sleeve 217 having a tapered head, and the block 205 is circumferentially disposed on the side wall of the shaft center. The tapered head of the rotating inner sleeve 217 cooperates with the clamped inclined wall 218.

The new telescopic tube assembly as described above is characterized in that the fixing block 202 is provided with a screw hole 215 into which the screw 213 is inserted, and the clamping block 203 is provided with the screw hole 215 for placing. The nut hole 216 of the nut 219 has a plurality of cylindrical grooves 214 for the screw 213 to pass through on the outer wall of the holding portion 2031.

The novel telescopic tube assembly as described above is characterized in that the rolling elements 201 are plural and circumferentially symmetrically arranged.

The new telescopic tube assembly as described above is characterized in that the rolling member 201 is a bearing, a ball, a roller or a needle.

The new telescopic tube assembly as described above is characterized in that the sliding assembly 2 further includes an externally threaded portion 211 disposed on the fixing block 202, and the externally threaded portion 211 is threadedly coupled for clamping and fixing A bushing 212 of the inner tube 1.

Compared with the prior art, the utility model has the following advantages:

1. The utility model is provided with a sliding component through the end of the inner pipe, the sliding component can also be used for connecting the inner pipes; the outer pipe outer sleeve is provided with an outer pipe which can slide along the sliding component, and the sliding component is arranged more. The rolling element for the sliding of the outer tube realizes the expansion and contraction of the pipe by rolling of the rolling piece, thereby greatly reducing the frictional force of the sliding of the outer tube, making the expansion and contraction of the pipe more convenient and convenient, and the outer tube can be pulled out when used. It is used as a support foot for various racks and has a wide range of applications.

2. The sliding assembly between the inner tubes of the utility model is threaded with a bushing, the bushing not only functions to connect the inner tubes, but also can finely adjust the length of the inner tube by the rotation of the bushing, and enhance The applicability of the telescopic pipe assembly.

[Description of the Drawings]

Figure 1 is a plan view of the present invention;

Figure 2 is a cross-sectional view of the utility model;

Figure 3 is a perspective view of the first structure of the slip assembly of the present invention;

Figure 4 is a perspective view of the second structure of the slip assembly of the present invention;

Figure 5 is a plan view showing the second structure of the slip assembly of the present invention;

Figure 6 is a sectional view taken along the line A-A of Figure 5;

Figure 7 is an exploded view of the second structure of the slip assembly of the present invention, in which the bushing is omitted;

Figure 8 is an exploded view of the first structure of the slip assembly of the present invention; the bolt is omitted;

Figure 9 is a perspective view of the clamping block of the present invention;

Figure 10 is a perspective view of a set of blocks of the present invention.

In the figure: 1 is the inner tube; 2 is the slip assembly; 201 is the rolling member; 202 is the fixed block; 203 is the clamping block; 2031 is the holding portion; 2032 is the truncated portion; 204 is the card slot; 205 is the card block 206 is a pin; 207 is a tapered table; 208 is a small card; 209 is a small card slot; 210 is a receiving groove; 211 is an external thread portion; 212 is a bushing; 213 is a screw; 214 is a cylindrical groove; 215 is a screw hole; 216 is a nut hole; 217 is a rotating inner sleeve; 218 is an inclined wall; 219 is a nut; and 3 is an outer tube.

【detailed description】

The technical features of the present invention will be further described in detail below in conjunction with the drawings to facilitate understanding by those skilled in the art.

A new type of telescoping tube assembly, as shown in Figures 1 to 10, includes an inner tube 1 and a sliding assembly 2 fixedly coupled to the end of the inner tube 1, the inner tube 1 having a peripheral sleeve capable of following The outer tube 3 of the sliding assembly 2 slides, the sliding assembly 2 including a rolling member 201 for sliding the outer tube 3 to effect expansion and contraction of the tube. The outer tube 3 outside the inner tube 1 is rolled on the rolling member 201 to realize expansion and contraction, and the frictional force can be greatly reduced.

Further, the telescoping tube assembly includes a plurality of the inner tubes 1 and the sliding assembly 2 for connecting the inner tubes 1. That is, the sliding assembly 2 can be used not only to realize the expansion and contraction of the pipe, but also to reduce the friction force, and can also be used for the connection between the inner pipes 1 to extend the length of the entire pipe assembly and increase the applicable range.

The sliding assembly of the first structure of the present invention is used for the non-joining end of the inner tube 1, and the sliding assembly 2 comprises a clamping block 203 for clamping and fixing the inner tube and a fixing fixedly connected with the clamping block 203. The block 202 is provided with a plurality of card slots 204 in the circumferential direction of the fixing block 202, and a card block 205 is formed in the card slot 204 to engage with the inner wall of the card slot 204. The rolling member 201 is rotatably disposed on the block 205 as shown in FIG.

The sliding assembly of the second structure can also be used to connect the two inner tubes 1. The sliding assembly further includes a male thread portion disposed on the fixing block 202 compared to the sliding assembly of the first structure. 211, the external thread portion 211 is screwed with a bushing 212 for clamping and fixing the other inner tube 1, and the other inner tube 1 is clamped by the bushing 212, as shown in FIG.

Further, the block 205 is provided with a receiving groove 210, and the shoulders on both sides of the receiving groove 210 are provided with a pin 206 traversing the receiving groove 210, and the rolling member 201 is disposed on the groove The pin 206 is partially extended and the receiving groove 210 is engaged with the inner wall of the outer tube 3, and the rolling member 201 can be rotated by itself or fixed on the pin 206 to rotate together with the pin 206, as shown in FIG. 2 and FIG. Shown.

In the new type of telescopic tube assembly as described above, the clamping block 203 includes a locking portion 2031 that is engaged with the inner tube 1 and a circular table portion 2032 that is engaged with the fixing block 202 and fixed by bolting. A card slot 204 is disposed on the truncated cone portion 2032, adjacent to two cards A slotted platform 207 is disposed between the slots 204 to be engaged with the outer walls of the adjacent two of the latching blocks 205. The outer wall of the two latching blocks 205 is provided with a small card 208 at the card slot 204. The two side walls are provided with a small card slot 209 which is engaged with the small card table 208. The cooperation of the small card table 208 and the small card slot 209 plays a role in positioning the card block 205.

In the new telescopic tube assembly as described above, the fixing block 202 is internally screwed with a rotating inner sleeve 217 having a tapered head portion, and the locking block 205 is circumferentially provided with a rotating inner sleeve 217. The tapered head cooperates with the clamped inclined wall 218. As shown in FIGS. 2 and 6, the block 205 and the rolling member 201 are caught between the tapered head of the rotating inner sleeve 217 and the outer tube 3 by rotation. By rotating the inner sleeve 217, the position of the rolling member 201 can be adjusted to change the tightness of the inner and outer tube fitting.

In the new telescopic tube assembly as described above, the fixing block 202 is provided with a screw hole 215 into which the screw 213 is inserted, and the clamping block 203 is provided with a nut for communicating with the screw hole 215 for placing the nut 219. The hole 216 has a plurality of cylindrical grooves 214 for the screw 213 to pass through on the outer wall of the holding portion 2031, that is, the fixing block 202 and the clamping block 203 are fixedly connected by bolts.

In the new telescopic tube assembly as described above, the rolling members 201 are plural and circumferentially symmetrically disposed. The rolling member 201 is a bearing, a ball, a roller or a needle roller. If a needle roller or a ball is used, the shape of the receiving groove 210 is matched with its outer shape to prevent falling, and a part of the receiving groove can be brought into contact with the outer tube 3 without using the pin 206.

The new telescopic tube assembly as described above, the clamping block 203 is preferably made of a plastic material.

The present invention has been described in detail above with reference to the embodiments of the drawings, and various modifications of the present invention can be made by those skilled in the art in light of the above description. Therefore, some of the details in the embodiments are not to be construed as limiting the scope of the invention, and the scope of the invention as defined by the appended claims.

Claims

A novel telescopic tube assembly comprising an inner tube (1) and a sliding assembly (2) fixedly connected to an end of the inner tube (1), characterized in that: the inner tube (1) has a peripheral sleeve capable of An outer tube (3) sliding along the slip assembly (2), the slip assembly (2) including a rolling member (201) for sliding the outer tube (3) to effect expansion and contraction of the tube.
The novel telescopic tube assembly according to claim 1, wherein the telescoping tube assembly comprises a plurality of the inner tubes (1) and the sliding assembly (2) for connecting the inner tubes (1).
The new telescopic tube assembly according to claim 2, characterized in that the sliding assembly (2) comprises a clamping block (203) for clamping the inner tube (1) and the clamping block ( 203) a fixedly connected fixing block (202), wherein a plurality of card slots (204) are circumferentially disposed at an end of the fixing block (202), and the card slot (204) is disposed in the card slot (204) A block (205) that is engaged with the inner wall of the card slot (204), and the rolling member (201) is rotatably disposed on the block (205).
The new telescopic tube assembly according to claim 3, wherein the block (205) is provided with a receiving groove (210), and the groove on both sides of the receiving groove (210) is provided with a horizontal crossing The pin (206) of the receiving groove (210), the rolling member (201) is disposed on the pin (206) and partially protrudes from the receiving groove (210).
The new telescopic tube assembly according to claim 4, wherein the clamping block (203) comprises a catching portion (2031) that is engaged with the inner tube (1) and the fixing block ( 202) mating and bolting the fixed truncated cone portion (2032), said A card slot (204) is disposed on the circular table portion (2032), and a tapered plate (which is configured to be engaged with an outer wall of two adjacent blocks (205)) is disposed between two adjacent card slots (204) 207), a small card table (208) is disposed on two outer walls of the card block (205), and two side walls of the card slot (204) are provided with the small card table (208). Small card slot (209).
The new telescopic tube assembly according to claim 4, wherein the fixing block (202) is internally threaded with a rotating inner sleeve (217) having a tapered head, and the clamping block (205) is pivoted The side wall is circumferentially provided with a slanted wall (218) that can be engaged with the tapered head of the rotating inner sleeve (217).
The new telescopic tube assembly according to claim 6, wherein the fixing block (202) is provided with a screw hole (215) for inserting a screw (213), and the clamping block (203) is provided on the fixing block (202). a nut hole (216) communicating with the screw hole (215) for placing a nut (219), and a plurality of outer walls of the latching portion (2031) are provided for the screw (213) to pass through Cylindrical groove (214).
The novel telescopic tube assembly according to claim 7, wherein said rolling members (201) are plural and circumferentially symmetrically disposed.
The new telescopic tube assembly according to any one of claims 1 to 3, characterized in that the rolling element (201) is a bearing, a ball, a roller or a needle.
The new telescopic tube assembly according to any one of claims 3 to 8, characterized in that the sliding assembly (2) further comprises an externally threaded portion (211) disposed on the fixing block (202). A bushing (212) for clamping and fixing the other inner tube (1) is screwed to the external thread portion (211).