Stepless adjusting pull rod

Abstract

The utility model relates to the technical field of adjusting pull rods, and discloses a stepless adjusting pull rod which comprises an installation structure, a pull rod body and a locking structure, the locking structure comprises a lock body, a movable groove is formed in the upper surface of the lock body, a lock catch is connected to the inner wall of the movable groove in a sliding mode, and a first groove is formed in the outer wall of the lock catch. A first spring is fixedly connected to the inner wall of the first groove. Through the arrangement of the springs and the extrusion block, when the button is pressed and the button is extruded towards the first groove, the first spring is extruded together, the button is released, the first spring rebounds and extrudes the limiting block to drive the extrusion block to extrude the second spring to be taken out of the upper groove of the first spring, the lock catch pops out of the movable groove, and an article bag opening is hung into the lock catch. The lock catch is pressed downwards, a button is pressed to drive an extrusion block to extrude a second spring, then the second spring rebounds and is clamped in an upper groove of the first spring, the lock catch is in a locked state, the lock body is placed in a clamping groove, the lock body is fixed together with an object, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of adjusting pull rod equipment, in particular to a stepless adjusting pull rod. Background Art

[0002] Due to the strong travel trend in recent years, suitcases and their accessories have also attracted much attention and even become the most actively developed target of manufacturers. The most common suitcases on the market today are suitcases with retractable pull rods. The pull rod length can be adjusted by fitting the male and female tubes of the pull rod on the suitcase to reduce the difference in the required force and the pulling height. However, when adjusting the length of the existing pull rod, there are only two lengths that can be adjusted, namely, a maximum length and a minimum length. The adjustment length is fixed and cannot be adjusted at will according to the needs of the user, which is inconvenient to use.

[0003] The application number is CN201020628948.9, which discloses an adjustable pull rod, including a base, a mother rod arranged on the base, a sub-rod movably connected to the mother rod, a handle connected to the front end of the sub-rod, and a supporting rod connected to the handle; it also includes a shaft running through the mother rod and the sub-rod, the end of the sub-rod is provided with a slidable movable block, a pressure block pressed with the shaft is arranged in the movable block, a spring is arranged between the pressure block and the movable block; the supporting rod is located between the movable block and the shaft. Since a pressure block pressed with the shaft is arranged in the movable block, a spring is arranged between the pressure block and the movable block; the supporting rod is located between the movable block and the shaft, and the spring pushes the pressure block to be fastened with the shaft, thereby achieving positioning. When the supporting rod pushes the pressure block to separate from the shaft, it can slide up and down, so that the length of the pull rod can be adjusted arbitrarily. It is easy to use and has a simple structure.

[0004] The adjustment pull rod disclosed in the above document has the following defects: when the device is installed on a box for use, when the user places parcels on the box, the movement of the box will cause the items to shake and fall, and there is a lack of a stable structure.

[0005] It can be seen from this that the existing stepless adjustment pull rod does not have the function of firmly placing items on a moving box without causing them to fall off. It is necessary to improve the deficiency and provide a function that can firmly place items on a moving box without causing them to fall off. Summary of the invention

[0006] The purpose of the utility model is to provide a stepless adjustment pull rod to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0008] The utility model is a stepless adjustment pull rod, comprising a mounting structure, a pull rod body and a locking structure, wherein the pull rod body is fixedly connected to the inner wall of the mounting structure, the locking structure is mounted on the inner wall of the mounting structure, the locking structure comprises a lock body, an upper surface of the lock body is provided with an active groove, a lock buckle is slidably connected to the inner wall of the active groove, a groove 1 is provided on the outer wall of the lock buckle, and a spring 1 is fixedly connected to the inner wall of the groove 1. The purpose of such arrangement is that during the use of the device, when a button is pressed and the button is pressed toward a groove, the spring 1 is also pressed, and when the button is released, the spring 1 rebounds and squeezes the limit block to drive the squeeze block to squeeze the spring 2 out of the upper groove of the spring 1, so that the lock buckle pops out of the active groove, the article bag mouth is hung in the lock buckle, and then the lock buckle is pressed downward, and the button is pressed to drive the squeeze block to squeeze the spring 2, and then the spring 2 rebounds and is connected to the upper groove of the spring 1, so that the lock buckle is in a locked state, and the lock body is placed in the card slot, so that the lock body and the article are fixed together, thereby improving the practicality of the device.

[0009] Furthermore, a groove 3 is provided on the outer wall of one side of the lock body, a protective plate is fixedly connected to the inner wall of the groove 3, a button is slidably connected to the inner wall of the protective plate, one end of the button is fixedly connected to a limiting block, and the limiting block is plugged into the inner wall of the lock buckle. The purpose of such a setting is that when the button is pressed to squeeze the groove in the process of using the device, the spring 1 is squeezed at the same time, and the button is released, the spring 1 rebounds to squeeze the limiting block and drive the squeezing block to squeeze the spring 2 out of the upper groove of the spring 1, so that the lock buckle pops out of the movable groove, the bag mouth of the article is hung in the lock buckle, and then the lock buckle is pressed downward, the button is pressed to drive the squeezing block to squeeze the spring 2, and then the spring 2 rebounds and is connected to the upper groove of the spring 1, so that the lock buckle is in a locked state, the groove 3 makes the button movable, and the protective plate protects the internal components.

[0010] Furthermore, a groove 2 is provided on the upper surface of the limit block, a spring 2 is fixedly connected to the inner wall of the bottom of the groove 2, and an extrusion block is fixedly connected to the top of the spring 2, and the extrusion block is located on the inner wall of the groove 2. The purpose of this arrangement is that when the device is used, the mouth of the bag is hung into the lock buckle, and then the lock buckle is pressed down, and the button is pressed to drive the extrusion block to squeeze the spring 2, and then the spring 2 rebounds and is connected to the upper groove of the spring 1, so that the lock buckle is in a locked state.

[0011] Furthermore, the mounting structure includes a mounting block, a receiving groove is provided on the upper surface of the mounting block, a rotating shaft is rotatably connected on the inner wall of the receiving groove, an elastic wire is sleeved on the outer wall of the rotating shaft, a connecting block is fixedly connected on the inner walls of both sides of the receiving groove, a clamping groove is provided on the upper surface of the connecting block, the lock body is located on the inner wall of the clamping groove, the elastic wire runs through the connecting block and extends to the inside of the lock body, a rotating rod is rotatably connected on the top inner wall of the receiving groove, and a protective block is fixedly connected on the outer wall of the rotating rod. The purpose of this arrangement is that when the device is used, the lock body is pulled, the lock body drives the elastic wire to rotate on the rotating shaft, the lock body can be stretched and moved, the clamping groove can fix the position of the lock body, and when the locking structure is not needed, the rotating rod is rotated to drive the protective block to protect the lock body and internal components.

[0012] Furthermore, the upper surface of the mounting block is provided with two placement grooves, a fixing rod is fixedly connected to the inner wall of the placement groove, a gear bar is fixedly connected to the inner walls of both sides of the fixing rod, two slide grooves are provided on the inner wall of the fixing rod close to the gear bar, a slider is slidably connected to the inner wall of the slide groove, a rotating rod is rotatably connected to the outer wall of the slider, a gear is fixedly connected to the outer wall of the rotating rod, and the gear bar and the gear are meshed. The purpose of this arrangement is that when the pull rod is pulled upward during use of the device, the gear bar and the chain block cooperate to drive the gear to rotate, the slider drives the gear to slide up and down in the slide groove, the gear slides up and down to drive the chain block to slide upward, and the chain block drives the pull rod upward to achieve stepless adjustment.

[0013] Furthermore, a pull rod is slidably connected to the inner wall of the fixed rod, a handrail is fixedly connected to the top of the pull rod, a connecting rod is fixedly connected to the inner wall of the pull rod, a connecting plate is fixedly connected to the lower surface of the connecting rod, chain blocks are fixedly connected to the outer walls of both sides of the connecting plate, and the chain blocks are meshed with gears. The purpose of this arrangement is that during the use of the device, the handrail is pulled upward, and the handrail drives the pull rod to slide upward for adjustment. When the pull rod is pulled upward, the gear bar and the chain block cooperate to drive the gear to rotate, the slider drives the gear to slide up and down in the slide slot, the gear slides up and down to drive the chain block to slide upward, and the chain block drives the pull rod upward to achieve stepless adjustment.

[0014] The utility model has the following beneficial effects:

[0015] (1) The utility model provides a spring and a squeeze block. When the device is used, the button is pressed and the button is squeezed toward a groove. Spring one is squeezed at the same time. When the button is released, spring one rebounds and squeezes the limit block, driving the squeeze block to squeeze spring two out of the upper groove of spring one, so that the lock snap pops out of the movable groove. The bag mouth of the article is hung in the lock snap. Then the lock snap is pressed downward. The button is pressed to drive the squeeze block to squeeze spring two. After that, spring two rebounds and is connected to the upper groove of spring one. The lock snap is in a locked state. The lock body is placed in the slot, so that the lock body and the article are fixed together, thereby improving the practicality of the device.

[0016] (2) The utility model is provided with gears and chain blocks. When the device is used, the armrest is pulled upward, and the armrest drives the pull rod to slide upward for adjustment. When the pull rod is pulled upward, the gear bar and the chain block cooperate to drive the gear to rotate, and the slider drives the gear to slide up and down in the slide groove. The up and down sliding of the gear drives the chain block to slide upward, and the chain block drives the pull rod upward to realize stepless adjustment.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the pull rod body of the utility model;

[0021] Figure 3 It is a schematic diagram of part of the internal structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the cross-sectional structure of the lock body of the utility model;

[0023] Figure 5 For this utility model Figure 4 Schematic diagram of the structure at A in the middle;

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] In the figure: 1. installation structure; 101. installation block; 102. placement slot; 103. storage slot; 2. pull rod body; 201. fixing rod; 202. gear bar; 203. slide slot; 204. slider; 205. rotating rod; 206. gear; 207. pull rod; 208. connecting rod; 209. connecting plate; 210. chain block; 211. handrail; 3. locking structure; 301. rotating shaft; 302. elastic line; 303. connecting block; 304. card slot; 305. rotating rod; 306. protective block; 310. lock body; 311. movable slot; 312. lock buckle; 313. groove one; 314. spring one; 315. button; 316. limit block; 317. groove two; 318. spring two; 319. extrusion block; 320. groove three; 321. protective plate. Implementation

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1 - Figure 5 As shown, the utility model is a stepless adjustment pull rod, including a mounting structure 1, a pull rod body 2 and a locking structure 3, the pull rod body 2 is fixedly connected to the inner wall of the mounting structure 1, the locking structure 3 is installed on the inner wall of the mounting structure 1, the locking structure 3 includes a lock body 310, a movable groove 311 is provided on the upper surface of the lock body 310, a lock buckle 312 is slidably connected to the inner wall of the movable groove 311, a groove 313 is provided on the outer wall of the lock buckle 312, and a spring 314 is fixedly connected to the inner wall of the groove 313. The purpose of such arrangement is that during the use of the device, when the button 315 is pressed and the button 315 is pressed toward the groove 1 313, the spring 1 314 is also pressed, and the button 315 is released, the spring 1 314 rebounds and squeezes the limit block 316 to drive the squeezing block 319 to squeeze the spring 2 318 out of the upper groove of the spring 1 314, so that the lock buckle 312 pops out from the movable groove 311, and the bag mouth of the article is hung in the lock buckle 312, and then the lock buckle 312 is pressed downward, and the button 315 is pressed to drive the squeezing block 319 to squeeze the spring 2 318, and then the spring 2 318 rebounds and is connected to the upper groove of the spring 1 314, so that the lock buckle 312 is in a locked state, and the lock body 310 is placed in the card slot 304, so that the lock body 310 and the articles are fixed together, thereby improving the practicality of the device.

[0028] A groove three 320 is opened on the outer wall of one side of the lock body 310, a protective plate 321 is fixedly connected to the inner wall of the groove three 320, a button 315 is slidably connected to the inner wall of the protective plate 321, one end of the button 315 is fixedly connected to a limit block 316, and the limit block 316 is inserted into the inner wall of the lock buckle 312. The purpose of such arrangement is that during the use of the device, when the button 315 is pressed and the button 315 is pressed toward the groove 1 313, the spring 1 314 is also pressed, and the button 315 is released, the spring 1 314 rebounds to squeeze the limit block 316 and drive the squeezing block 319 to squeeze the spring 2 318 out of the upper groove of the spring 1 314, so that the lock buckle 312 pops out from the movable groove 311, and the bag mouth of the article is hung in the lock buckle 312, and then the lock buckle 312 is pressed downward, and the button 315 is pressed to drive the squeezing block 319 to squeeze the spring 2 318, and then the spring 2 318 rebounds and is connected to the upper groove of the spring 1 314, so that the lock buckle 312 is in a locked state, and the groove 320 makes the button 315 movable, and the protective plate 321 protects the internal components.

[0029] The upper surface of the limit block 316 is provided with a second groove 317, and a second spring 318 is fixedly connected to the inner wall of the bottom of the second groove 317. The top of the second spring 318 is fixedly connected to an extrusion block 319, and the extrusion block 319 is located on the inner wall of the second groove 317. The purpose of this arrangement is that when the device is used, the mouth of the bag is hung into the lock buckle 312, and then the lock buckle 312 is pressed downward. After pressing the button 315, the extrusion block 319 squeezes the second spring 318, and the second spring 318 rebounds and is connected to the upper groove of the first spring 314, so that the lock buckle 312 is in a locked state.

[0030] The mounting structure 1 includes a mounting block 101, a receiving groove 103 is provided on the upper surface of the mounting block 101, a rotating shaft 301 is rotatably connected to the inner wall of the storing groove 103, an elastic line 302 is sleeved on the outer wall of the rotating shaft 301, connecting blocks 303 are fixedly connected to the inner walls on both sides of the storing groove 103, a clamping groove 304 is provided on the upper surface of the connecting block 303, a lock body 310 is located on the inner wall of the clamping groove 304, the elastic line 302 passes through the connecting block 303 and extends to the inside of the lock body 310, a rotating rod 305 is rotatably connected to the top inner wall of the storing groove 103, and a protective block 306 is fixedly connected to the outer wall of the rotating rod 305. The purpose of this arrangement is that when the device is in use, the lock body 310 is pulled, and the lock body 310 drives the elastic line 302 to rotate on the rotating shaft 301, so that the lock body 310 can be stretched and moved, and the card slot 304 can fix the position of the lock body 310. When the locking structure 3 is not needed, the rotating rod 205 is rotated to drive the protective block 306 to protect the lock body 310 and internal components.

[0031] The upper surface of the mounting block 101 is provided with two placement grooves 102, a fixing rod 201 is fixedly connected to the inner wall of the placement groove 102, a gear bar 202 is fixedly connected to the inner walls of both sides of the fixing rod 201, two slide grooves 203 are provided on the inner wall of the fixing rod 201 close to the gear bar 202, a slider 204 is slidably connected to the inner wall of the slide groove 203, a rotating rod 205 is rotatably connected to the outer wall of the slider 204, a gear 206 is fixedly connected to the outer wall of the rotating rod 205, and the gear bar 202 and the gear 206 are meshed and connected. The purpose of such a setting is that during the use of the device, when the pull rod 207 is pulled upward, the gear bar 202 and the chain block 210 rotate in coordination with the transmission gear 206, the slider 204 drives the gear 206 to slide up and down in the slide groove 203, the gear 206 slides up and down to drive the chain block 210 to slide upward, and the chain block 210 drives the pull rod 207 upward to achieve stepless adjustment.

[0032] A pull rod 207 is slidably connected to the inner wall of the fixed rod 201, a handrail 211 is fixedly connected to the top of the pull rod 207, a connecting rod 208 is fixedly connected to the inner wall of the pull rod 207, a connecting plate 209 is fixedly connected to the lower surface of the connecting rod 208, and chain blocks 210 are fixedly connected to the outer walls of both sides of the connecting plate 209, and the chain blocks 210 are meshed and connected with the gear 206. The purpose of this arrangement is that when the device is used, the handrail 211 is pulled upward, and the handrail 211 drives the pull rod 207 to slide upward for adjustment. When the pull rod 207 is pulled upward, the gear bar 202 and the chain block 210 cooperate to drive the gear 206 to rotate, the slider 204 drives the gear 206 to slide up and down in the slide slot 203, the gear 206 slides up and down to drive the chain block 210 to slide upward, and the chain block 210 drives the pull rod 207 upward to achieve stepless adjustment.

[0033] When in use, during the use of the device, the button 315 is pressed, and when the button 315 is pressed toward the groove 1 313, the spring 1 314 is also pressed, and the button 315 is released, the spring 1 314 rebounds to squeeze the limit block 316 and drive the squeezing block 319 to squeeze the spring 2 318 out of the upper groove of the spring 1 314, so that the lock buckle 312 pops out from the movable groove 311, and the bag mouth of the item is hung in the lock buckle 312, and then the lock buckle 312 is pressed downward, and the button 315 is pressed to drive the squeezing block 319 to squeeze the spring 2 318, and then the spring 2 318 rebounds and is connected to the upper groove of the spring 1 314, so that the lock buckle 312 is in a locked state, and the lock body 310 is placed in the card slot 304, so that the lock body 310 and the items are fixed together, thereby improving the practicality of the device.

[0034] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A stepless adjustment pull rod, comprising a mounting structure (1), a pull rod body (2) and a locking structure (3), characterized in that: The pull rod body (2) is fixedly connected to the inner wall of the mounting structure (1), and the locking structure (3) is mounted on the inner wall of the mounting structure (1). The locking structure (3) comprises a lock body (310), and a movable groove (311) is provided on the upper surface of the lock body (310). A lock buckle (312) is slidably connected to the inner wall of the movable groove (311). A groove 1 (313) is provided on the outer wall of the lock buckle (312), and a spring 1 (314) is fixedly connected to the inner wall of the groove 1 (313).

2. The stepless adjustment pull rod according to claim 1, characterized in that: A groove three (320) is provided on an outer wall of one side of the lock body (310); a protective plate (321) is fixedly connected to the inner wall of the groove three (320); a button (315) is slidably connected to the inner wall of the protective plate (321); one end of the button (315) is fixedly connected to a limit block (316); and the limit block (316) is plugged into the inner wall of the lock buckle (312).

3. The stepless adjustment pull rod according to claim 2, characterized in that: A second groove (317) is provided on the upper surface of the limit block (316); a second spring (318) is fixedly connected to the inner wall of the bottom of the second groove (317); an extrusion block (319) is fixedly connected to the top of the second spring (318); and the extrusion block (319) is located on the inner wall of the second groove (317).

4. The stepless adjustment pull rod according to claim 1, characterized in that: The mounting structure (1) comprises a mounting block (101), the upper surface of the mounting block (101) is provided with a receiving groove (103), the inner wall of the receiving groove (103) is rotatably connected to a rotating shaft (301), the outer wall of the rotating shaft (301) is sleeved with an elastic wire (302), the inner walls on both sides of the receiving groove (103) are fixedly connected to connecting blocks (303), the upper surface of the connecting block (303) is provided with a clamping groove (304), the lock body (310) is located on the inner wall of the clamping groove (304), the elastic wire (302) penetrates the connecting block (303) and extends to the interior of the lock body (310), the top inner wall of the receiving groove (103) is rotatably connected to a rotating rod (305), and the outer wall of the rotating rod (305) is fixedly connected to a protective block (306).

5. The stepless adjustment pull rod according to claim 4, characterized in that: The upper surface of the mounting block (101) is provided with two placement grooves (102), the inner wall of the placement groove (102) is fixedly connected with a fixing rod (201), the inner walls on both sides of the fixing rod (201) are fixedly connected with gear bars (202), the inner wall of the fixing rod (201) close to the gear bar (202) is provided with two slide grooves (203), the inner wall of the slide groove (203) is slidably connected with a slider (204), the outer wall of the slider (204) is rotatably connected with a rotating rod (205), the outer wall of the rotating rod (205) is fixedly connected with a gear (206), and the gear bar (202) and the gear (206) are meshingly connected.

6. The stepless adjustment pull rod according to claim 5, characterized in that: A pull rod (207) is slidably connected to the inner wall of the fixed rod (201), a handrail (211) is fixedly connected to the top of the pull rod (207), a connecting rod (208) is fixedly connected to the inner wall of the pull rod (207), a connecting plate (209) is fixedly connected to the lower surface of the connecting rod (208), chain blocks (210) are fixedly connected to the outer walls on both sides of the connecting plate (209), and the chain blocks (210) are meshingly connected to the gear (206).

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