A new type of drawbar

Abstract

The present invention discloses a novel drawbar, which comprises a telescopic rod. An article fixing tube and an article moving tube are arranged at the lower end of the telescopic rod; the article moving tube and the article fixing tube are respectively fixedly connected to the upper and lower ends of a longitudinally telescopic article; a first locking member is arranged at the lower end of the article moving tube; the lower end of the article moving tube is sleeved inside the article fixing tube, and the article moving tube is locked on the article fixing tube through the first locking member; the telescopic rod is arranged at the upper end of the article moving tube, and the article is pushed and pulled through the telescopic rod; according to the actual telescopic height of the article, the relative length of the article fixing tube and the article moving tube can be adjusted through the first locking member, and the article can be pushed and pulled through the telescopic rod, so as to meet the use requirements of the telescopic article.

Description

Technical Field

[0001] The present invention relates to the technical field of drawbars, and more specifically, to a novel drawbar. Background Art

[0002] In actual production and life, retractable drawbars are often used to push and pull items to facilitate the rapid movement of items. Since many items can be telescoped along the height direction according to actual needs, and the lower end of the existing drawbar is usually of a fixed length and the drawbar is fixed to the item, when the item undergoes telescopic changes, the length of the drawbar extending from the item often appears too long or too short, and the stability of the drawbar installed on the item is poor, making it difficult to meet the actual use requirements of pushing and pulling items. Summary of the Invention

[0003] The purpose of the present invention is to provide a novel drawbar, which can adjust the relative length of the item fixed tube and the item moving tube according to the actual telescopic height of the item through a first locking member, and push and pull the item through a telescopic rod, so as to meet the use requirements of telescopic items.

[0004] To achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A novel drawbar includes a telescopic rod. The lower end of the telescopic rod is provided with an item fixed tube and an item moving tube; the item moving tube and the item fixed tube are respectively fixedly connected to the upper and lower ends of a longitudinally telescopic item; a first locking member is provided at the lower end of the item moving tube; the lower end of the item moving tube is sleeved inside the item fixed tube, and the item moving tube is locked on the item fixed tube through the first locking member; the telescopic rod is arranged at the upper end of the item moving tube, and the item is pushed and pulled through the telescopic rod.

[0006] Further, the first locking member includes a first seat body, a plurality of first locking pins, a first spring and a first thrust member; the first seat body is fixedly arranged at the lower end of the item moving tube; the item fixed tube is provided with a plurality of first locking holes at intervals from top to bottom; the first locking pin and the first spring are arranged inside the first seat body, one end of the first locking pin is connected to the first spring, and the other end of the first locking pin is embedded in the first locking hole; the first thrust member is arranged on the first seat body, and the first locking pin is driven to retract into the first seat body through the first thrust member.

[0007] Further, the telescopic rod includes a push-pull fixed tube and a push-pull moving tube; the push-pull fixed tube is sleeved inside the item moving tube and its lower end is fixed to one side of the upper end of the first seat body; a second locking member is provided at the lower end of the push-pull moving tube; the lower end of the push-pull moving tube is sleeved inside the push-pull fixed tube, and the push-pull moving tube is locked on the push-pull fixed tube through the second locking member.

[0008] Further, the second locking member includes a second seat body, a second locking pin, a second spring, and a second thrust member; the second seat body is fixedly arranged at the lower end of the article moving tube; a plurality of second locking holes are arranged at intervals from top to bottom on the push-pull fixed tube; the second locking pin and the second spring are arranged in the second seat body, one end of the second locking pin is connected to the second spring, and the other end of the second locking pin is embedded in the second locking hole; the second thrust member is arranged on the second seat body, and the second locking pin is driven to retract into the second seat body through the second thrust member.

[0009] Further, the number of the first locking pins is two, and the two first locking pins are oppositely arranged on both sides of the first seat body; the end parts of the first spring are respectively fixedly connected to the inner ends of the two first locking pins; a first inclined groove is arranged at the upper end of the first locking pin; the first thrust member is slidably arranged on the first seat body, and a first inclined convex part is arranged at the lower end of the first thrust member; a first connecting rod is fixedly arranged at the upper end of the first thrust member; the first connecting rod is located outside the push-pull fixed tube, and the upper end of the first connecting rod extends out from the article moving tube, and the first locking pin is driven to retract into the first seat body by pressing down the first connecting rod to drive the first inclined convex part to move inwards in the first inclined groove.

[0010] Further, one end of the second spring is fixedly connected to the inner end of the second locking pin, and the other end of the second spring is fixedly connected to the second seat body; a second inclined groove is arranged at the upper end of the second locking pin; the second thrust member is slidably arranged on the second seat body, and a second inclined convex part is arranged at the lower end of the second thrust member; a second connecting rod is fixedly arranged at the upper end of the second thrust member; the upper end of the second connecting rod extends out from the push-pull moving tube, and the second locking pin is driven to retract into the second seat body by pressing down the second connecting rod to drive the second inclined convex part to move inwards in the second inclined groove.

[0011] Further, two article fixing tubes, two article moving tubes, and two telescopic rods are arranged oppositely left and right; a mounting seat is fixed between the upper ends of the two article moving tubes, and a handle is fixed between the upper ends of the two push-pull moving tubes; a first driving member is arranged on the mounting seat, and the two oppositely arranged first connecting rods are pressed down through the first driving member; a second driving member is arranged on the handle, and the two oppositely arranged second connecting rods are pressed down through the second driving member.

[0012] Further, the first driving member includes a first driving key and two first driving rods respectively arranged on the sides of the first driving key; the two ends of the first driving rod are inclined surfaces, and the first driving rod is slidably arranged on the mounting seat; the first driving key is pressed down to push the two first driving rods to move outwards to press down the first connecting rod; a first driving spring is arranged in the first driving rod, and the two ends of the first driving spring are respectively connected to the first driving rod and the mounting seat to enable the first driving rod to move inwards and reset.

[0013] Further, the second driving member includes a second driving key and two second driving rods respectively arranged on the sides of the second driving key; both ends of the second driving rod are inclined surfaces, and the second driving rod is slidably arranged on the handle; when the second driving key is pressed down, it pushes the two second driving rods to move outwards to press down the second connecting rod; a second driving spring is arranged inside the second driving rod, and both ends of the second driving spring are respectively connected to the second driving rod and the handle to make the second driving rod move inwards to reset.

[0014] After adopting the above technical solution, the present invention has the following beneficial effects:

[0015] 1. A novel drawbar of the present invention can adjust the relative length of the article fixing tube and the article moving tube according to the actual telescopic height of the article through the first locking member, and push and pull the article through the telescopic rod, which can meet the use requirements of telescopic articles.

[0016] 2. A novel drawbar of the present invention can push the two first driving rods to move outwards to press down the first connecting rod by pressing the first driving key. The downward pressure of the first connecting rod drives the first inclined convex part to drive the first inclined groove to move inwards, so that the first locking pin retracts into the first seat body, which can make the article moving tube move along the article fixing tube to adjust the height of the article. After the height adjustment is completed, release the first driving key, and the first locking pin is embedded into the first locking hole under the restoring force of the first spring to lock the article fixing tube and the article moving tube. At the same time, the first driving spring makes the first driving rod move inwards to reset.

[0017] 3. A novel drawbar of the present invention can push the two second driving rods to move outwards to press down the second connecting rod by pressing the second driving key. The downward pressure of the second connecting rod drives the second inclined convex part to drive the second inclined groove to move inwards, so that the second locking pin retracts into the second seat body, which can make the push-pull moving tube move along the push-pull fixing tube to adjust the height of the handle. After the height adjustment is completed, release the second driving key, and the second locking pin is embedded into the second locking hole under the restoring force of the second spring to lock the push-pull fixing tube and the push-pull moving tube. At the same time, the second driving spring makes the second driving rod move inwards to reset. Description of the Drawings

[0018] Figure 1 It is a front-side three-dimensional structure schematic diagram of the present invention;

[0019] Figure 2 It is a rear-side three-dimensional structure schematic diagram of the present invention;

[0020] Figure 3 It is a structure schematic diagram of the present invention when the mounting seat and the handle are not installed;

[0021] Figure 4 It is a connection structure schematic diagram of the first driving member and the second driving member of the present invention;

[0022] Figure 5Schematic longitudinal sectional structure diagram along the first thrust member of the present invention;

[0023] Figure 6 is Figure 5 Partial enlarged view of part B in

[0024] Figure 7 Schematic longitudinal sectional structure diagram along the second thrust member of the present invention;

[0025] Figure 8 is Figure 7 Partial enlarged view of part A in

[0026] Figure 9 Schematic structure diagram of the first driving member and the second driving member of the present invention;

[0027] Figure 10 Schematic structure diagram of the first locking member of the present invention when not installed on the first seat body;

[0028] Figure 11 Schematic structure diagram of the second locking member of the present invention when not installed on the second seat body.

[0029] In the figure, the reference numerals are represented as:

[0030] 1. Article fixing tube; 10. First locking hole; 2. Article moving tube; 3. Telescopic rod; 30. Push-pull fixing tube; 300. Second locking hole; 31. Push-pull moving tube; 32. Second locking member; 320. Second seat body; 321. Second locking pin; 3210. Second inclined groove; 322. Second spring; 323. Second thrust member; 3230. Second inclined convex part; 324. Second connecting rod; 4. First locking member; 40. First seat body; 41. First locking pin; 410. First inclined groove; 42. First spring; 43. First thrust member; 430. First inclined convex part; 44. First connecting rod; 5. Mounting seat; 50. First driving member; 500. First driving key; 501. First driving rod; 502. First driving spring; 6. Handle; 60. Second driving member; 600. Second driving key; 601. Second driving rod; 602. Second driving spring. Detailed implementation manners

[0031] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0032] Please refer to Figures 1 to 11, a new type of drawbar, comprising a telescopic rod 3, with an article fixing tube 1 and an article moving tube 2 provided at the lower end of the telescopic rod 3; the article moving tube 2 and the article fixing tube 1 are respectively fixedly connected to the upper and lower ends of a longitudinally telescopic article; a first locking member 4 is provided at the lower end of the article moving tube 2; the lower end of the article moving tube 2 is sleeved inside the article fixing tube 1, and the article moving tube 2 is locked onto the article fixing tube 1 by the first locking member 4; the telescopic rod 3 is provided at the upper end of the article moving tube 2, and the article is pushed and pulled by the telescopic rod 3.

[0033] As Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 10 shown, the first locking member 4 comprises a first seat body 40, a plurality of first locking pins 41, a first spring 42 and a first thrust member 43; the first seat body 40 is fixedly provided at the lower end of the article moving tube 2; a plurality of first locking holes 10 are provided at intervals from top to bottom on the article fixing tube 1; the first locking pins 41 and the first spring 42 are arranged inside the first seat body 40, one end of the first locking pin 41 is connected to the first spring 42, and the other end of the first locking pin 41 is embedded inside the first locking hole 10; the first thrust member 43 is arranged on the first seat body 40, and the first locking pin 41 is driven to retract into the first seat body 40 by the first thrust member 43.

[0034] As Figure 2 , Figure 3 , Figure 4 , Figure 7 , Figure 8 and Figure 11 shown, the telescopic rod 3 comprises a push-pull fixed tube 30 and a push-pull moving tube 31; the push-pull fixed tube 30 is sleeved inside the article moving tube 2 and its lower end is fixed to one side of the upper end of the first seat body 40; a second locking member 32 is provided at the lower end of the push-pull moving tube 31; the lower end of the push-pull moving tube 31 is sleeved inside the push-pull fixed tube 30, and the push-pull moving tube 31 is locked onto the push-pull fixed tube 30 by the second locking member 32.

[0035] As Figure 2 , Figure 3 , Figure 4 , Figure 7 , Figure 8 and Figure 11As shown, the second locking member 32 includes a second seat body 320, a second locking pin 321, a second spring 322, and a second thrust member 323; the second seat body 320 is fixedly arranged at the lower end of the article moving tube 2; the push-pull fixed tube 30 is provided with a plurality of second locking holes 300 at intervals from top to bottom; the second locking pin 321 and the second spring 322 are arranged in the second seat body 320, one end of the second locking pin 321 is connected to the second spring 322, and the other end of the second locking pin 321 is embedded in the second locking hole 300; the second thrust member 323 is arranged on the second seat body 320, and the second locking pin 321 is driven to retract into the second seat body 320 through the second thrust member 323.

[0036] As Figure 4 , Figure 5 , Figure 6 and Figure 10 As shown, the number of the first locking pins 41 is two, and the two first locking pins 41 are arranged oppositely on both sides of the first seat body 40; the end parts of the first spring 42 are respectively fixedly connected to the inner ends of the two first locking pins 41; a first inclined groove 410 is arranged at the upper end of the first locking pin 41; the first thrust member 43 is slidably arranged on the first seat body 40, and a first inclined convex part 430 is arranged at the lower end of the first thrust member 43; a first connecting rod 44 is fixed to the upper end of the first thrust member 43; the first connecting rod 44 is located outside the push-pull fixed tube 30, and the upper end of the first connecting rod 44 extends out from the article moving tube 2, and the first inclined convex part 430 is driven to drive the first inclined groove 410 to move inwards so that the first locking pin 41 retracts into the first seat body 40 by pressing down the first connecting rod 44.

[0037] As Figure 4 , Figure 5 , Figure 6 and Figure 10 As shown, one end of the second spring 322 is fixedly connected to the inner end of the second locking pin 321, and the other end of the second spring 322 is fixedly connected to the second seat body 320; a second inclined groove 3210 is arranged at the upper end of the second locking pin 321; the second thrust member 323 is slidably arranged on the second seat body 320, and a second inclined convex part 3230 is arranged at the lower end of the second thrust member 323; a second connecting rod 324 is fixed to the upper end of the second thrust member 323; the upper end of the second connecting rod 324 extends out from the push-pull moving tube 31, and the second inclined convex part 3230 is driven to drive the second inclined groove 3210 to move inwards so that the second locking pin 321 retracts into the second seat body 320 by pressing down the second connecting rod 324.

[0038] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 9As shown, there are two sets of the article fixing tubes 1, article moving tubes 2, and telescopic rods 3 arranged opposite to each other left and right; a mounting seat 5 is fixed between the upper ends of the two article moving tubes 2, and a handle 6 is fixed between the upper ends of the two push-pull moving tubes 31; a first driving member 50 is provided on the mounting seat 5, and two relatively arranged first connecting rods 44 are pressed down by the first driving member 50; a second driving member 60 is provided on the handle 6, and two relatively arranged second connecting rods 324 are pressed down by the second driving member 60.

[0039] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 9 As shown, the first driving member 50 includes a first driving key 500 and two first driving rods 501 respectively arranged on the sides of the first driving key 500; both ends of the first driving rod 501 are inclined surfaces, and the first driving rod 501 is slidably arranged on the mounting seat 5; the first driving key 500 is pressed down to push the two first driving rods 501 to move outwards to press down the first connecting rod 44; a first driving spring 502 is arranged inside the first driving rod 501, and both ends of the first driving spring 502 are respectively connected to the first driving rod 501 and the mounting seat 5 to make the first driving rod 501 move inwards to reset.

[0040] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 9 As shown, the second driving member 60 includes a second driving key 600 and two second driving rods 601 respectively arranged on the sides of the second driving key 600; both ends of the second driving rod 601 are inclined surfaces, and the second driving rod 601 is slidably arranged on the handle 6; the second driving key 600 is pressed down to push the two second driving rods 601 to move outwards to press down the second connecting rod 324; a second driving spring 602 is arranged inside the second driving rod 601, and both ends of the second driving spring 602 are respectively connected to the second driving rod 601 and the handle 6 to make the second driving rod 601 move inwards to reset.

[0041] As mentioned above, the above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A new type of drawbar, comprising a telescopic rod (3), characterized in that: The lower end of the telescopic rod (3) is provided with an article fixing tube (1) and an article moving tube (2); the article moving tube (2) and the article fixing tube (1) are respectively fixedly connected to the upper and lower ends of the longitudinally telescopic article; the lower end of the article moving tube (2) is provided with a first locking member (4); the lower end of the article moving tube (2) is sleeved in the article fixing tube (1), and the article moving tube (2) is locked on the article fixing tube (1) through the first locking member (4); the telescopic rod (3) is arranged at the upper end of the article moving tube (2), and the article is pushed and pulled through the telescopic rod (3). The telescopic rod (3) includes a push-pull fixed tube (30) and a push-pull moving tube (31); the push-pull fixed tube (30) is sleeved in the article moving tube (2); the lower end of the push-pull moving tube (31) is provided with a second locking member (32); the lower end of the push-pull moving tube (31) is sleeved in the push-pull fixed tube (30), and the push-pull moving tube (31) is locked on the push-pull fixed tube (30) through the second locking member (32). Two of the article fixing tubes (1), the article moving tubes (2) and the telescopic rods (3) are arranged opposite to each other left and right; an installation seat (5) is fixed between the upper ends of the two article moving tubes (2), and a handle (6) is fixed between the upper ends of the two push-pull moving tubes (31); a first driving member (50) is arranged on the installation seat (5), and the first locking member (4) is unlocked by pressing down two oppositely arranged first connecting rods (44) through the first driving member (50), so that the article moving tube (2) can slide along the article fixing tube (1); a second driving member (60) is arranged on the handle (6), and the second locking member (32) is unlocked by pressing down two oppositely arranged second connecting rods (324) through the second driving member (60), so that the push-pull moving tube (31) can slide along the push-pull fixed tube (30). The second driving member (60) is located above the first driving member (50).

2. The novel drawbar according to claim 1, characterized in that: The first locking member (4) includes a first seat body (40), a plurality of first locking pins (41), a first spring (42) and a first thrust member (43); the first seat body (40) is fixedly arranged at the lower end of the article moving tube (2); the article fixing tube (1) is provided with a plurality of first locking holes (10) at intervals from top to bottom; the first locking pin (41) and the first spring (42) are arranged in the first seat body (40), one end of the first locking pin (41) is connected to the first spring (42), and the other end of the first locking pin (41) is embedded in the first locking hole (10); the first thrust member (43) is arranged on the first seat body (40), and the first locking pin (41) is driven to retract into the first seat body (40) through the first thrust member (43).

3. The novel drawbar according to claim 2, characterized in that: The lower end of the push-pull fixed tube (30) is fixed to one side of the upper end of the first seat body (40).

4. A novel drawbar according to claim 3, characterized in that: The second locking member (32) includes a second base body (320), a second locking pin (321), a second spring (322) and a second thrust member (323); the second base body (320) is fixedly arranged at the lower end of the push-pull moving tube (31); the push-pull fixed tube (30) is provided with a plurality of second locking holes (300) at intervals from top to bottom; the second locking pin (321) and the second spring (322) are arranged in the second base body (320), one end of the second locking pin (321) is connected with the second spring (322), and the other end of the second locking pin (321) is embedded in the second locking hole (300); the second thrust member (323) is arranged on the second base body (320), and the second locking pin (321) is driven to retract into the second base body (320) by the second thrust member (323).

5. A novel drawbar as claimed in claim 4, wherein: The number of the first locking pins (41) is two, and the two first locking pins (41) are oppositely arranged on both sides of the first base body (40); the end parts of the first spring (42) are respectively fixedly connected with the inner ends of the two first locking pins (41); the upper end of the first locking pin (41) is provided with a first inclined groove (410); the first thrust member (43) is slidably arranged on the first base body (40), and the lower end of the first thrust member (43) is provided with a first inclined convex part (430); the upper end of the first thrust member (43) is fixedly provided with a first connecting rod (44); the first connecting rod (44) is located outside the push-pull fixed tube (30), and the upper end of the first connecting rod (44) extends out from the article moving tube (2). By pressing down the first connecting rod (44), the first inclined convex part (430) is driven to drive the first inclined groove (410) to move inwards so that the first locking pin (41) retracts into the first base body (40).

6. A novel drawbar according to claim 5, characterized in that: One end of the second spring (322) is fixedly connected with the inner end of the second locking pin (321), and the other end of the second spring (322) is fixedly connected with the second base body (320); the upper end of the second locking pin (321) is provided with a second inclined groove (3210); the second thrust member (323) is slidably arranged on the second base body (320), and the lower end of the second thrust member (323) is provided with a second inclined convex part (3230); the upper end of the second thrust member (323) is fixedly provided with a second connecting rod (324); the upper end of the second connecting rod (324) extends out from the push-pull moving tube (31). By pressing down the second connecting rod (324), the second inclined convex part (3230) is driven to drive the second inclined groove (3210) to move inwards so that the second locking pin (321) retracts into the second base body (320).

7. A novel drawbar according to claim 6, characterized in that: The first driving member (50) includes a first driving key (500) and two first driving rods (501) respectively arranged on the sides of the first driving key (500); both ends of the first driving rod (501) are inclined surfaces, and the first driving rod (501) is slidably arranged on the mounting base (5); when the first driving key (500) is pressed down, it pushes the two first driving rods (501) to move outwards to press down the first connecting rod (44); a first driving spring (502) is arranged inside the first driving rod (501), and both ends of the first driving spring (502) are respectively connected to the first driving rod (501) and the mounting base (5) to make the first driving rod (501) move inwards to reset.

8. A novel drawbar according to claim 6, characterized in that: The second driving member (60) includes a second driving key (600) and two second driving rods (601) respectively arranged on the sides of the second driving key (600); both ends of the second driving rod (601) are inclined surfaces, and the second driving rod (601) is slidably arranged on the handle (6); when the second driving key (600) is pressed down, it pushes the two second driving rods (601) to move outwards to press down the second connecting rod (324); a second driving spring (602) is arranged inside the second driving rod (601), and both ends of the second driving spring (602) are respectively connected to the second driving rod (601) and the handle (6) to make the second driving rod (601) move inwards to reset.

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