Improved tug bag chassis

Abstract

The utility model discloses an improved tug bag chassis which comprises a tug chassis body, the left side and the right side of the lower portion of the rear wall face of the tug chassis body are movably connected with bottom wheels through hinge shafts, and a frame body installation groove is formed in the rear wall face of the tug chassis body. The supporting frame body is inserted into the frame body mounting groove in a sleeved mode and matched with the frame body mounting groove, the upper portion of the supporting frame body is movably connected to the tug chassis through a hinge shaft, and supporting wheels are installed at the bottoms of vertical supporting pipes of the supporting frame body; the frame body mounting groove comprises a left vertical groove and a right vertical groove which extend up and down, and wheel placing grooves are formed in the rear wall surfaces of the tug chassis at the bottom ends of the vertical grooves; the positioning part can be retracted into the fixing sleeve body only by holding the holding rod part with a hand and pulling the holding rod part downwards, meanwhile, the protruding positioning part is retracted into the vertical rear supporting pipe, the supporting frame body can be turned down, and the supporting frame is convenient to install and fold and good in using effect.

Description

Technical fields:

[0001] This utility model relates to the field of golf equipment technology, and more specifically to an improved tow wheel bag chassis. Background technology:

[0002] Currently, golf bags are typically placed in wheeled bags for transport. These wheeled bags usually have a base and wheels at the bottom, allowing them to be tilted and pulled by pulling the top. However, since they are supported by two wheels, an upward force is required to maintain the tilted movement, making it quite labor-intensive, especially for those with less strength.

[0003] Therefore, Chinese Patent Application No. 200810126247.2 describes a fully recessed, movable bias-type cantilevered luggage unit with legs designed to support the weight of the luggage unit during use. When not in use, the legs are fully recessed into the luggage unit, facilitating a safe and reliable transition to an extended operating position. This is convenient for transporting large and heavy objects from the luggage unit; however, its operation requires pulling the entire leg frame down and then flipping it over, making it relatively cumbersome. Utility model content:

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide an improved towing bag chassis. It only requires holding the gripping rod and pulling it down to retract the positioning part into the fixed sleeve. At the same time, the protruding positioning part retracts into the vertical rear support tube, which allows the support frame to be flipped down. It is easy to install and retract and has good performance.

[0005] The solution of this utility model to the aforementioned technical problem is:

[0006] An improved tow wheel chassis includes a tow wheel chassis. Bottom wheels are movably connected to the lower left and right sides of the rear wall of the tow wheel chassis via hinge shafts. A frame mounting groove is formed on the rear wall of the tow wheel chassis. A support frame is inserted into the frame mounting groove and cooperates with the frame mounting groove. The upper part of the support frame is movably connected to the tow wheel chassis via a hinge shaft. Support wheels are installed at the bottom of the vertical support tube of the support frame.

[0007] The frame mounting groove includes two vertical grooves extending vertically to the left and right. A wheel placement groove is formed on the rear wall of the towing chassis at the bottom end of the vertical groove. The wheel placement groove is connected to the corresponding vertical groove. A middle mounting groove is formed between the two vertical grooves. An upper groove is formed above the two vertical grooves. Both ends of the upper groove and both ends of the middle mounting groove are connected to the two vertical grooves.

[0008] A gripping rod is provided between two vertical support tubes. Movable blocks are installed at both ends of the gripping rod. The movable blocks are inserted into the corresponding vertical support tubes. The outer side wall of the movable block is close to and cooperates with the inner side wall of the vertical support tube. The two ends of the gripping rod are inserted into the vertically extending elongated through groove formed in the middle of the adjacent side plates of the two vertical support tubes.

[0009] A semi-circular groove is formed on the front wall surface of the upper end of the vertical groove, an upwardly extending upper protruding positioning recess is formed on the inner wall surface of the upper end of the semi-circular groove, and a forwardly extending front protruding positioning recess is formed on the front wall surface of the semi-circular groove.

[0010] The support frame includes two vertical support tubes with vertical through holes formed in the middle. The vertical support tubes are inserted into corresponding vertical grooves. A fixing sleeve is inserted into the upper end of the vertical support tube. The inner side wall of the fixing sleeve is close to the upper outer side wall of the vertical support tube. Hinges are inserted into the corresponding through holes of the left and right side plates in the middle of the fixing sleeve and the left and right side plates in the upper part of the vertical support tube. The two ends of the hinges extend out of the left and right outer side walls of the fixing sleeve and are movably connected to the left and right side walls of the corresponding vertical groove.

[0011] The limiting post is inserted into the upper part of the vertical support tube. The positioning part of the upper end of the limiting post is fixed or formed, extending out of the upper end of the vertical support tube and the upper end of the fixed sleeve and inserted into the upper protruding positioning recess. The lower outer wall of the positioning part is close to the upper inner wall of the corresponding vertical support tube. A moving block is inserted into the vertical support tube below the limiting post. An upper vertical rod is fixed on the top surface of the moving block. The top end of the upper vertical rod is fixed on the bottom end of the limiting post.

[0012] A vertical connecting rod is fixed to the bottom of the movable block. A lower lifting head is fixed to the bottom end of the vertical connecting rod. A vertical guide plate is fixed to the bottom end of the lower lifting head. The bottom surface of the vertical guide plate is an inclined wall. An adjusting limiting column is fixed to the inner wall of the vertical support tube below the lower lifting head. A downwardly extending slot is formed in the middle of the top surface of the adjusting limiting column. A lower positioning block is fixed to the bottom surface of the adjusting limiting column. The lower positioning block is inserted into the vertical support tube. A transverse insertion hole extending inward is formed on the outer wall of the lower positioning block. A lower slot is formed in the middle of the top surface of the lower positioning block. The lower slot communicates with and corresponds to the slot. The transverse positioning block is inserted into the transverse insertion hole. A guide insertion hole is formed on the top surface of the transverse positioning block. The inner wall of the guide insertion hole is inward and downward. The inclined wall extends at an angle. A vertical guide plate is inserted into the slot and the lower slot. The lower part of the vertical guide plate is close to or in close contact with the front and rear inner sidewalls of the lower slot. The bottom of the vertical guide plate is inserted into the guide hole. The bottom surface of the vertical guide plate is an inclined wall and is in close contact with and cooperates with the inclined wall surface of the guide hole. A transverse spring is inserted into the transverse hole. One end of the transverse spring is pressed against the inner end face of the transverse hole. The other end of the transverse spring is inserted into the insertion hole at the inner end of the transverse positioning block and into the inner end face of the insertion hole. A protruding positioning part is formed in the middle of the outer end face of the transverse positioning block. The protruding positioning part is inserted into the through hole on the outer wall plate of the vertical support tube. The outer end of the protruding positioning part is inserted into the positioning recess formed on the side wall of the corresponding vertical groove.

[0013] A raised positioning part is formed on the left or right side wall of the middle part of the vertical guide plate, and an elastic bending limiting part is formed on the left or right side wall of the upper part of the slot of the adjusting limiting column, with the bottom end of the elastic bending limiting part pressing against the top end of the corresponding raised positioning part.

[0014] The rear part of the top surface at both ends of the upper groove is formed with a downwardly extending blocking part, which is located behind the left or right part of the grip rod and blocks the left or right part of the grip rod.

[0015] The outstanding effect of this utility model is:

[0016] It features a foldable support frame with supporting wheels at the bottom. After the support frame is flipped out, it can be moved by four wheels, including two supporting wheels and a bottom wheel. This eliminates the need for manual upward pulling force; only horizontal pulling force is required to move the towing bag chassis horizontally. It is labor-saving and effective.

[0017] Simply hold the gripping rod and pull it down to retract the positioning part into the fixed sleeve. At the same time, the protruding positioning part retracts into the vertical rear support tube, allowing the support frame to fall down. It is easy to operate and has good performance.

[0018] After flipping out, the positioning part can be extended from the top of the fixing sleeve and inserted into the front protrusion positioning recess by the horizontal spring to achieve fixation and facilitate use;

[0019] Meanwhile, when not in use, the gripping rod can be pulled down to retract the positioning part into the fixed sleeve, and the protruding positioning part into the vertical rear support tube. The support frame can then be flipped back into the frame mounting groove, reducing the space occupied by the outside. Moreover, after entering the frame mounting groove, the elastic restoring force of the transverse spring causes the positioning part to extend out of the top of the fixed sleeve and into the upper protruding positioning recess, thus locking the support frame. At the same time, the protruding positioning part extending into the corresponding positioning recess makes it less likely to fall out of the frame mounting groove, resulting in a good locking effect and improved safety. Attached image description:

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a partial structural diagram of the angle-changing part of this utility model;

[0022] Figure 3 This is a partial sectional view of the present invention;

[0023] Figure 4 It is a partial sectional view of the support frame and the tugboat chassis;

[0024] Figure 5 yes Figure 4 A magnified view of a portion of the image;

[0025] Figure 6 This is a partial structural schematic diagram of the present invention from the rear view direction. Detailed implementation method:

[0026] For example, see below. Figures 1 to 6 As shown, an improved tow wheel bag chassis includes a tow wheel chassis 10. Bottom wheels 11 are movably connected to the lower left and right sides of the rear wall of the tow wheel chassis 10 via hinge shafts. A frame mounting groove 20 is formed on the rear wall of the tow wheel chassis 10. A support frame 30 is inserted into the frame mounting groove 20 and cooperates with the frame mounting groove 30. The upper part of the support frame 30 is movably connected to the tow wheel chassis 10 via hinge shafts. A support wheel 40 is installed at the bottom of the vertical support tube 31 of the support frame 30. The support wheel 40 is a swivel wheel.

[0027] The frame mounting groove 20 includes two vertically extending grooves 21 extending vertically to the left and right. A wheel placement groove 22 is formed on the rear wall of the towing chassis 10 at the bottom end of the vertical groove 21. The wheel placement groove 22 communicates with the corresponding vertical groove 21. A middle mounting groove 23 is formed between the two vertical grooves 21. An upper groove 24 is formed above the two vertical grooves 21. Both ends of the upper groove 24 and both ends of the middle mounting groove 23 communicate with the two vertical grooves 21. A main horizontal rod is fixed between the two vertical support tubes 31. The main horizontal rod is inserted into the middle mounting groove 23.

[0028] A gripping rod 3 is provided between two vertical support tubes 31. Movable blocks 34 are installed at both ends of the gripping rod 3. The movable blocks 34 are inserted into the corresponding vertical support tubes 31. The outer side wall of the movable blocks 34 is close to and cooperates with the inner side wall of the vertical support tubes 31. The two ends of the gripping rod 3 are inserted into the vertically extending elongated through groove formed in the middle of the adjacent side plates of the two vertical support tubes 31.

[0029] The upper end of the vertical groove 21 has a semi-circular groove 211 formed on the front wall surface. The upper inner wall surface of the semi-circular groove 211 has an upwardly extending upper protruding positioning recess, and the front wall surface of the semi-circular groove 211 has a forwardly extending front protruding positioning recess. The semi-circular groove 211 allows the top of the two vertical support tubes 31 of the support frame 30 to rotate along the semi-circular groove 211 when they are flipped.

[0030] The support frame 30 includes two vertical support tubes 31 (with rectangular cross-sections) with vertical through holes formed in the middle. The vertical support tubes 31 are inserted into the corresponding vertical grooves 21. The upper end of the vertical support tubes 31 is fitted with a fixing sleeve 32. The inner sidewall of the fixing sleeve 32 is close to the upper outer sidewall of the vertical support tubes 31. The left and right side plates in the middle of the fixing sleeve 32 and the left and right side plates in the upper part of the vertical support tubes 31 are fitted with hinge shafts. The two ends of the hinge shafts extend out of the left and right outer sidewalls of the fixing sleeve and are movably connected to the left and right sidewalls of the corresponding vertical grooves 21.

[0031] The limiting post 33 is inserted into the upper part of the vertical support tube 31. The positioning part fixed or formed at the upper end of the limiting post 33 extends out of the upper end of the vertical support tube 31 and the upper end of the fixing sleeve 32 and is inserted into the upper protruding positioning recess. The lower outer wall of the positioning part is close to the upper inner wall of the corresponding vertical support tube 31. A moving block 34 is inserted into the vertical support tube 31 below the limiting post 33. An upper vertical rod 341 is fixed on the top surface of the moving block 34. The top end of the upper vertical rod 341 is fixed on the bottom end of the limiting post 33.

[0032] A vertical connecting rod 36 is fixed to the bottom of the movable block 34. A lower lifting head 37 is fixed to the bottom end of the vertical connecting rod 36. A vertical guide plate 38 is fixed to the bottom end of the lower lifting head 37. The bottom surface of the vertical guide plate 38 is an inclined wall. An adjusting limiting column 50 is fixed to the inner wall of the vertical support tube 31 below the lower lifting head 37. A downwardly extending slot is formed in the middle of the top surface of the adjusting limiting column 50. A lower positioning block is fixed to the bottom surface of the adjusting limiting column 50. The lower positioning block is inserted into the vertical support tube 31. A transverse insertion hole 51 extending inward is formed on the outer wall of the lower positioning block. A lower slot is formed in the middle of the top surface of the lower positioning block. The lower slot communicates with and corresponds to the slot. A transverse positioning block 52 is inserted into the transverse insertion hole 51. A guide insertion hole 53 is formed on the top surface of the transverse positioning block 52. The inner wall of the guide insertion hole 53 is inwardly extending. The vertical guide plate 38 is inserted into the slot and the lower slot, and the lower part of the vertical guide plate 38 is close to or in close contact with the front and rear inner side walls of the lower slot. The bottom of the vertical guide plate 38 is inserted into the guide hole 53. The bottom surface of the vertical guide plate 38 is a sloping wall surface and is in close contact with and cooperates with the sloping wall surface of the guide hole 53. A horizontal spring 1 is inserted into the horizontal hole 51. One end of the horizontal spring 1 is pressed against the inner end face of the horizontal hole 51. The other end of the horizontal spring 1 is inserted into the insertion hole at the inner end of the horizontal positioning block 52 and into the inner end face of the insertion hole. A protruding positioning part 521 is formed in the middle of the outer end face of the horizontal positioning block 52. The protruding positioning part 521 is inserted into the through hole on the outer wall plate of the vertical support tube 31. The outer end of the protruding positioning part 521 is inserted into the positioning recess formed on the side wall of the corresponding vertical groove 21.

[0033] A raised positioning part 381 is formed on the left or right side wall of the middle part of the vertical guide plate 38, and an elastic bending limiting part 55 is formed on the left or right side wall of the upper part of the slot of the adjusting limiting column 50. The bottom end of the elastic bending limiting part 55 presses against the top end of the corresponding raised positioning part 381.

[0034] The upper groove 24 has a downwardly extending blocking portion 241 formed on the rear part of the top surface at both ends. The blocking portion 241 is located behind the left or right part of the gripping rod 3 and blocks the left or right part of the gripping rod 241.

[0035] The middle part of the grip rod 3 is a laterally extending grip part. Both ends of the laterally extending grip part are formed with obliquely extending connecting parts that extend upwards. The connecting parts formed at the ends of the obliquely extending connecting parts are inserted into the corresponding elongated through slots and fixed on the corresponding moving block 34.

[0036] The front or rear sidewall of the slot has a guide protrusion formed in the middle. The guide protrusion is inserted into the vertical main guide groove formed in the middle of the vertical guide plate 38. The left and right sidewalls of the guide protrusion are in close contact with the left and right sidewalls of the corresponding vertical main guide grooves. The guide protrusion can guide the raising and lowering of the vertical guide plate 38 and prevent the vertical guide plate 38 from deviating.

[0037] In this embodiment, there are two states during use. One state is when the support frame 30 is retracted and located in the frame mounting groove 20. At this time, the positioning part of the upper end of the limiting post 33 extends out of the upper end of the vertical support tube 31 and the upper end of the fixing sleeve 32 and is inserted into the upper protruding positioning recess. At the same time, the outer end of the protruding positioning part 521 is inserted into the positioning recess formed on the side wall of the corresponding vertical groove 21, so that the support frame 30 is fixed on the towing wheel chassis 10. At this time, the blocking part 241 is located behind the left or right part of the gripping rod part 3 and blocks the left or right side of the gripping rod part 241. In this state, no matter how the support frame 30 is pulled outward, it will not flip out of the frame mounting groove 20, which is firmly fixed, reduces the occupation of external space, and has a good use effect.

[0038] Another state is the usage state, where the gripping rod 3 can be grasped by hand and pulled downwards. At this time, the positioning part at the upper end of the limiting post 33 retracts from the upper protruding positioning recess. Simultaneously, the moving block 34 descends, the vertical guide plate 38 descends, and its bottom surface descends along the inclined wall of the guide insertion hole 53, moving the transverse positioning block 52 laterally inwards. The transverse spring 1 is compressed. At this time, the outer end of the protruding positioning part 521 moves out of the positioning recess 211 formed on the side wall of the corresponding vertical groove 21. Then, by pulling backwards with the hand holding the gripping rod 3, the support frame 30 can be flipped out. During the flipping, the top of the fixing sleeve 32 and the vertical support tube 31 move along the semi-circular groove 211. Rotate until the upper end of the limiting post 33 aligns with the front protrusion positioning recess. As the transverse spring 1 returns, all components return to their original positions, causing the upper end of the limiting post 33 to extend beyond the upper end of the vertical support tube 31 and the upper end of the fixing sleeve 32 and insert into the corresponding front protrusion positioning recess, thus locking it in place. At this time, the support frame 30 is basically perpendicular to the rear wall of the tow wheel chassis 10. This allows the tow wheel chassis 10 to be tilted downwards and pressed against the ground by the support wheels 40 and the bottom wheels 11. Then, the tow wheel chassis 10 can be manually pulled to move laterally. Golf bags or airline bags can be placed on it for moving and transporting, greatly reducing manual labor and improving the efficiency of use.

Claims

1. An improved towing bag chassis, comprising a towing chassis (10), wherein bottom wheels (11) are movably connected to the lower left and right sides of the rear wall of the towing chassis (10) via hinge shafts, characterized in that: The rear wall of the tugboat chassis (10) has a frame mounting groove (20) formed. The support frame (30) is inserted into the frame mounting groove (20) and cooperates with the frame mounting groove (30). The upper part of the support frame (30) is movably connected to the tugboat chassis (10) through a hinge shaft. The bottom of the vertical support tube (31) of the support frame (30) is equipped with a support wheel (40). The frame mounting groove (20) includes two vertical grooves (21) extending vertically to the left and right. A wheel placement groove (22) is formed on the rear wall of the towing chassis (10) at the bottom end of the vertical groove (21). The wheel placement groove (22) communicates with the corresponding vertical groove (21). A middle mounting groove (23) is formed between the two vertical grooves (21). An upper groove (24) is formed at the top between the two vertical grooves (21). Both ends of the upper groove (24) and both ends of the middle mounting groove (23) communicate with the two vertical grooves (21). A gripping rod (3) is provided between two vertical support tubes (31). Movable blocks (34) are installed at both ends of the gripping rod (3). The movable blocks (34) are inserted into the corresponding vertical support tubes (31). The outer sidewall of the movable blocks (34) is close to and cooperates with the inner sidewall of the vertical support tubes (31). The two ends of the gripping rod (3) are inserted into the vertically extending elongated through groove formed in the middle of the adjacent side plates of the two vertical support tubes (31).

2. The improved towing bag chassis according to claim 1, characterized in that: The upper end of the vertical groove (21) has a semi-circular groove (211) formed on the front wall surface. The upper end of the semi-circular groove (211) has an upwardly extending upper protruding positioning recess formed on the inner wall surface. The front end of the semi-circular groove (211) has a forwardly extending front protruding positioning recess formed on the front wall surface. The support frame (30) includes two vertical support tubes (31) with vertical through holes formed in the middle. The vertical support tubes (31) are inserted into the corresponding vertical grooves (21). The upper end of the vertical support tubes (31) is fitted with a fixed sleeve (32). The inner side wall of the fixed sleeve (32) is close to the upper outer side wall of the vertical support tubes (31). The left and right side plates in the middle of the fixed sleeve (32) and the left and right side plates in the upper part of the vertical support tubes (31) are fitted with hinge shafts. The two ends of the hinge shafts extend out of the left and right outer side walls of the fixed sleeve (32) and are movably connected to the left and right side walls of the corresponding vertical grooves (21). The limiting post (33) is inserted into the upper part of the vertical support tube (31). The positioning part fixed or formed at the upper end of the limiting post (33) extends out of the upper end of the vertical support tube (31) and the upper end of the fixing sleeve (32) and is inserted into the upper protruding positioning recess. The lower outer wall of the positioning part is close to the upper inner wall of the corresponding vertical support tube (31). A moving block (34) is inserted into the vertical support tube (31) below the limiting post (33). An upper vertical rod (341) is fixed on the top surface of the moving block (34). The top end of the upper vertical rod (341) is fixed on the bottom end of the limiting post (33).

3. The improved towing bag chassis according to claim 2, characterized in that: A vertical connecting rod (36) is fixed to the bottom of the movable block (34), a lower lifting head (37) is fixed to the bottom end of the vertical connecting rod (36), a vertical guide plate (38) is fixed to the bottom end of the lower lifting head (37), the bottom surface of the vertical guide plate (38) is an inclined wall surface, and an adjusting limiting column (50) is fixed to the inner wall of the vertical support tube (31) below the lower lifting head (37), and a downwardly extending slot is formed in the middle of the top surface of the adjusting limiting column (50). A lower positioning block is fixed to the bottom surface of the adjusting limit column (50). The lower positioning block is inserted into the vertical support tube (31). A transverse insertion hole (51) extending inward is formed on the outer side wall of the lower positioning block. A lower slot is formed in the middle of the top surface of the lower positioning block. The lower slot communicates with and corresponds to the slot. A transverse positioning block (52) is inserted into the transverse insertion hole (51). A guide insertion hole (53) is formed on the top surface of the transverse positioning block (52). The inner side wall of the guide insertion hole (53) is inward. A downwardly extending inclined wall surface, a vertical guide plate (38) is inserted into the slot and the lower slot, the lower part of the vertical guide plate (38) is close to or in close contact with the front and rear inner side walls of the lower slot, the bottom of the vertical guide plate (38) is inserted into the guide insertion hole (53), the bottom surface of the vertical guide plate (38) is an inclined wall surface and is in close contact with and cooperates with the inclined wall surface of the guide insertion hole (53), a transverse spring (1) is inserted into the transverse insertion hole (51), one end of the transverse spring (1) is pressed The other single spring (1) rests against the inner end face of the transverse insertion hole (51), and is inserted into the insertion hole at the inner end of the transverse positioning block (52) and on the inner end face of the insertion hole. A protruding positioning part (521) is formed in the middle of the outer end face of the transverse positioning block (52). The protruding positioning part (521) is inserted into the through hole on the outer wall plate of the vertical support tube (31), and the outer end of the protruding positioning part (521) is inserted into the positioning recess formed on the side wall of the corresponding vertical groove (21).

4. An improved towing bag chassis according to claim 3, characterized in that: A raised positioning part (381) is formed on the left or right side wall of the middle part of the vertical guide plate (38), and an elastic bending limiting part (55) is formed on the left or right side wall of the upper part of the slot of the adjusting limiting column (50), with the bottom end of the elastic bending limiting part (55) pressing against the top end of the corresponding raised positioning part (381).

5. An improved towing bag chassis according to claim 1, characterized in that: The upper groove (24) has a downwardly extending blocking part (241) formed on the rear part of the top surface at both ends. The blocking part (241) is located behind the left or right part of the gripping rod (3) and blocks the left or right part of the gripping rod (241).

6. An improved towing bag chassis according to claim 5, characterized in that: The middle part of the grip rod (3) is a laterally extending grip part. Both ends of the laterally extending grip part are formed with obliquely extending connecting parts that extend upwards. The connecting parts formed at the ends of the obliquely extending connecting parts are inserted into the corresponding elongated through slots and fixed on the corresponding moving block (34).

7. An improved towing bag chassis according to claim 1, characterized in that: The front or rear sidewall of the slot is formed with a guide protrusion in the middle. The guide protrusion is inserted into the vertical main guide groove formed in the middle of the vertical guide plate (38). The left and right sidewalls of the guide protrusion are closely attached to the left and right sidewalls of the corresponding vertical main guide groove.

Images