Portable cart

Abstract

The utility model discloses a portable cart which comprises a cart chassis, a transverse connecting shaft is fixed to the rear portion of the cart chassis, and the two ends of the transverse connecting shaft extend out of the outer side walls of a left side plate and a right side plate of the cart chassis and are fixedly provided with cart wheel devices. Placing grooves which extend downwards are formed in the left part and the right part of the top surface of the trolley chassis, the placing grooves extend front and back, the lower parts of two hand-held rods are inserted into the rear parts of the placing grooves in a sleeving manner, and a transverse connecting shaft is inserted into transverse through holes which are formed in the lower parts of the two hand-held rods and extend left and right in a sleeving manner; and a transverse positioning mechanism is mounted on the bottom surface of the middle part of a top plate at the rear part of the trolley chassis. When not in use, the folding table can be folded, space occupation is reduced, the folding table is convenient to place, meanwhile, the telescopic plate of the folding table can be stretched or retracted according to the size requirements of placed articles, and the folding table is convenient to adjust and good in effect.

Description

Technical Field:

[0001] The utility model relates to the technical field of trolley equipment, and more specifically, to a portable trolley. Background Art:

[0002] When people buy a large number of items or carry boxes, they will use a trolley to facilitate handling. However, the existing trolleys are large in volume and occupy a lot of space, and it is not convenient to place them at home, resulting in a large space occupation.

[0003] At the same time, the sizes of the bottom placement plates of the existing trolleys are the same and cannot be adjusted according to needs, so that they cannot be adjusted according to the quantity or size of the placed items, and the adjustment effect is limited. Content of the Utility Model:

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a portable trolley which can be folded when not in use to reduce space occupation and facilitate placement. At the same time, its telescopic plate can be stretched or retracted according to the size requirements of the placed items, with convenient adjustment and good effect.

[0005] The solution of the utility model to solve the above technical problems is:

[0006] A portable trolley includes a trolley chassis. A transverse connecting shaft is fixed to the rear of the trolley chassis, and both ends of the transverse connecting shaft extend out of the outer side walls of the left and right side plates of the trolley chassis and are fixed with trolley wheel devices.

[0007] Placing grooves extending downward are formed in the left and right parts of the top surface of the trolley chassis, and the placing grooves extend forward and backward. The lower parts of two handrails are inserted into the rear parts of the placing grooves, and the transverse connecting shaft is inserted into the horizontally extending transverse through holes in the lower parts of the two handrails.

[0008] A transverse positioning mechanism is installed on the bottom surface of the middle part of the top plate at the rear of the trolley chassis. The left end of the left transverse rod of the transverse positioning mechanism extends out of the through hole in the right side wall of the left placing groove and is inserted into the positioning through hole in the right side wall of the lower part of the left handrail. The right end of the right transverse rod of the transverse positioning mechanism extends out of the through hole in the left side wall of the right placing groove and is inserted into the positioning through hole in the left side wall of the lower part of the right handrail.

[0009] In the middle bottom surface of the top plate at the rear of the trolley chassis, a transverse plate portion extending downward and horizontally is formed. The same bottom baffle is fixed to the bottom ends of the two transverse plate portions. An inner cavity is formed between the transverse plate portion, the bottom baffle, and the top plate at the rear of the trolley chassis. Two moving blocks are placed in the inner cavity. The front and rear side walls of the moving blocks are close to the front and rear inner side walls of the inner cavity. On the top surfaces of the two moving blocks, vertical toggling rods are formed or fixed. The two vertical toggling rods are inserted into two transverse through grooves formed on the top plate at the rear of the trolley chassis. The top ends of the vertical toggling rods extend out of the top ends of the transverse through grooves. Inner grooves are formed on the opposite wall surfaces of the two moving blocks. Compression springs are inserted into the two inner grooves, and the two ends of the compression springs are pressed against the inner end surfaces of the two inner grooves.

[0010] On the outer end surfaces of the two moving blocks, a left transverse rod and a right transverse rod are respectively formed. The outer ends of the left transverse rod and the right transverse rod both extend out of the inner cavity. A bottom reinforcing sleeve is inserted on the outer side wall of the lower part of the handrail. The bottom reinforcing sleeve is fixed at the lower part of the handrail. The outer ends of the left transverse rod and the right transverse rod both extend out of the through holes in the side plates of the corresponding bottom reinforcing sleeve and extend into the through holes in the corresponding side plates of the lower part of the handrail.

[0011] Hook sleeve bodies are fixed on the outer side walls of the middle parts of the two handrails.

[0012] In the middle of the bottom surface at the front of the top plate of the trolley chassis, a lower limit housing is fixed. A telescopic plate is inserted into the lower limit housing. The front end of the telescopic plate extends out of the front end of the lower limit housing and forms a middle blocking portion extending upward and bent. On the left and right parts of the bottom plate of the lower limit housing, positioning through grooves extending forward and backward are formed. Tooth-shaped protrusions extending forward and backward are formed on the inner sides of the two positioning through grooves on the side away from each other. Elastic clamping plates extending downward are formed on the left and right parts of the bottom surface of the telescopic plate. A plurality of protrusion parts are formed on the outer side walls of the elastic clamping plates. The protrusion parts are inserted into the tooth grooves of the corresponding tooth-shaped protrusions.

[0013] Vertical through holes with a rectangular cross-section are formed in the middle parts of the two handrails. Clamping through holes are formed in the middle of the top parts of the front and rear wall plates of the two handrails. An upper limit sleeve body is clamped in the top part of the vertical through hole of the handrail. Oblique protrusion parts are formed on the outer wall surfaces of the front and rear wall plates of the upper limit sleeve body, and are clamped in the corresponding clamping through holes. A radially extending edge is formed on the outer side wall of the top end of the upper limit sleeve body. The bottom surface of the radially extending edge is pressed against the top surface of the handrail. The lower part of the telescopic rod is inserted into the upper limit sleeve body. The outer side wall of the lower part of the telescopic rod is closely attached to the inner side wall of the corresponding upper limit sleeve body. A lower limit block is fixed at the bottom end of the telescopic rod. The lower top surface of the lower limit block is pressed against or close to the bottom end surface of the corresponding upper limit sleeve body. A clamping portion formed in the middle of the top surface of the lower limit block is clamped in the lower end of the middle through hole of the telescopic rod.

[0014] At the top of the two handrails, two lifting and adjusting sleeves are inserted. The inner side wall of the lifting and adjusting sleeve is close to or in contact with the outer side wall of the top of the handrail. A middle holding part is fixed between the two lifting and adjusting sleeves;

[0015] On the upper parts of the left side plate and the right side plate of the two handrails that are far away from each other, there are vertically aligned positioning side through grooves formed. In the middle of the bottom surface of the corresponding side plate of the lifting and adjusting sleeve, there is a through groove extending upward. In the middle of the top surface of the through groove, there is an elastic buckle part extending downward. On the lower part of the inner side wall of the elastic buckle part, there is a positioning protrusion. The positioning protrusion is inserted into the corresponding positioning side through groove, and its inner end extends out of the inner end of the corresponding positioning side through groove and is located in the limiting groove formed at the bottom of the outer side wall of the corresponding lower limiting block.

[0016] The tops of the two telescopic rods are fixed to the same top grip part.

[0017] On the front left and right sides of the top plate of the trolley chassis, there are front blocking parts extending downward.

[0018] The prominent effect of the present utility model is:

[0019] When not in use, it can be folded to reduce space occupation and is convenient for placement. At the same time, its telescopic plate can be stretched or retracted according to the size requirements of the placed items, with convenient adjustment and good effect. Description of the drawings:

[0020] Figure 1 It is a partial structural schematic diagram of the present utility model;

[0021] Figure 2 It is Figure 1 The partial enlarged view of

[0022] Figure 3 It is a partial structural schematic diagram of the present utility model with an angle change;

[0023] Figure 4 It is Figure 3 The partial enlarged view of

[0024] Figure 5 It is a partial structural schematic diagram between components such as a transverse connecting shaft and a moving block;

[0025] Figure 6 It is a partial cross-sectional view at the lifting and adjusting sleeve;

[0026] Figure 7 It is a partial cross-sectional view with an angle change at the lifting and adjusting sleeve;

[0027] Figure 8 It is a partial structural schematic diagram of the trolley chassis;

[0028] Figure 9 It isFigure 8 Partial structural schematic diagram at different angles;

[0029] Figure 10 Partial structural schematic diagram between the lifting adjustment sleeve and the middle holding part;

[0030] Figure 11 Partial structural schematic diagram of the present utility model using a climbing wheel;

[0031] Figure 12 is Figure 11 Partial structural schematic diagram at different angles. Specific implementation manner:

[0032] In the embodiment, as shown in Figures 1 to 12 A portable trolley, including a trolley chassis 10. At the left and right parts of the top surface of the trolley chassis 10, downwardly extending placement grooves 12 are formed. The placement grooves 12 extend front and back. The left and right side plates at the placement grooves 12 extend vertically downward and protrude from the bottom surface of the top plate of the trolley chassis 10. The transverse connecting shaft 11 is inserted into the through holes of the four side plates at the two placement grooves 12 or clamped on the inner side walls of the through holes of the four side plates;

[0033] Both ends of the transverse connecting shaft 11 protrude from the outer side walls of the side plates of the two placement grooves 12 of the trolley chassis 10 that are far away from each other and are fixed to the trolley wheel device 20;

[0034] The lower parts of the two handrails 30 are inserted into the rear parts of the placement grooves 12, and the transverse connecting shaft 11 is inserted into the horizontally extending through holes in the lower parts of the two handrails 30;

[0035] In the middle of the bottom surface of the rear part of the top plate of the trolley chassis 10, a transverse positioning mechanism 40 is installed. The left end of the left transverse rod 41 of the transverse positioning mechanism 40 protrudes from the through hole in the right side wall of the left placement groove 12 and is inserted into the positioning through hole in the right side wall of the lower part of the left handrail 30. The right end of the right transverse rod 42 of the transverse positioning mechanism 40 protrudes from the through hole in the left side wall of the right placement groove 12 and is inserted into the positioning through hole in the left side wall of the lower part of the right handrail 30.

[0036] Furthermore, the middle bottom surface of the top plate at the rear of the cart chassis 10 is formed with two transverse plate portions 13 extending downward and left and right, the bottom ends of the two transverse plate portions 13 are fixed to the same bottom baffle plate 14, and the left and right ends of the two transverse plate portions 13 are formed on the outer side walls of the side plates on the adjacent side of the two placement grooves 12; an inner cavity is formed between the transverse plate portion 13, the bottom baffle plate 14 and the top plate at the rear of the cart chassis 10, and the transverse positioning mechanism 40 includes two moving blocks 15, the two moving blocks 15 are placed in the inner cavity, and the front and rear side walls of the moving blocks 15 Close to the front and rear inner walls of the inner cavity, vertical toggle rods 151 are formed or fixed on the top surfaces of the two moving blocks 15. The two vertical toggle rods 151 are inserted into two transverse through grooves 16 formed on the top plate of the rear part of the cart chassis 10. The top ends of the vertical toggle rods 151 extend out of the top ends of the transverse through grooves 16. Inner grooves are formed on the opposite wall surfaces of the two moving blocks 15. The compression spring 1 is inserted into the two inner grooves. A convex portion is formed on the inner end surface of the inner groove. The end of the compression spring 1 is in the convex portion, and the two ends of the compression spring 1 are pressed against the inner end surfaces of the two inner grooves.

[0037] A left transverse rod 41 and a right transverse rod 42 are respectively formed on the outer end surfaces of the two moving blocks 15, and the outer ends of the left transverse rod 41 and the right transverse rod 42 both extend out of the inner cavity, and a bottom reinforcement sleeve 31 is inserted on the lower outer wall of the handrail 30, and the bottom reinforcement sleeve 31 is fixed at the lower part of the handrail 30, and the outer ends of the left transverse rod 41 and the right transverse rod 42 both extend out of the corresponding through holes of the side panels of the bottom reinforcement sleeve 31 and extend into the corresponding through holes of the side panels at the lower part of the handrail 30.

[0038] Furthermore, the bottom surface of the placement groove 12 is lower at the rear and higher at the front;

[0039] Furthermore, a hook sleeve 2 is fixed on the outer wall of the middle part of the two handrails 30, an elastic sheet 3 extending upward is formed on the rear wall of the hook sleeve 2, a front protrusion 4 bent forward is formed on the top of the elastic sheet 3, the front end of the front protrusion 4 is close to the rear wall of the hook sleeve 2, and the top of the front protrusion 4 extends obliquely backward. Bags and other items can be hung between the hook sleeve 2 and the elastic sheet 3.

[0040] Furthermore, a lower limit shell 17 is fixed to the middle of the front bottom surface of the top plate of the cart chassis 10, and the telescopic plate 18 is inserted into the lower limit shell 17, the top surface of the telescopic plate 18 is close to the front bottom surface of the top plate of the cart chassis 10, and the bottom surface of the telescopic plate 18 is close to the top surface of the bottom plate of the lower limit shell 17;

[0041] The front end of the telescopic plate 18 extends out of the front end of the lower limit housing 17 and is formed with a middle blocking portion 181 that bends upward and extends. The left and right parts of the bottom plate of the lower limit housing 17 are both formed with positioning through grooves 171 that extend front and back. On the inner sides of the two positioning through grooves 171 on the sides away from each other, there are formed tooth-shaped protrusions 172 that extend front and back. The left and right parts of the bottom surface of the telescopic plate 18 are both formed with elastic clamping plates 182 that extend downward. On the outer side walls of the elastic clamping plates 182, there are formed a plurality of protrusion parts 183. The protrusion parts 183 are inserted into the tooth grooves of the corresponding tooth-shaped protrusions 172.

[0042] On the left and right parts of the middle of the bottom surface of the telescopic plate 18, there are formed middle guiding pieces 184. One side wall of the middle guiding piece 184 is close to the inner side wall near the inner side of the corresponding positioning through groove 171. The two middle guiding pieces 184 ensure the guiding effect when the telescopic plate 18 moves back and forth.

[0043] This structure enables, during use, when the placed items are relatively large, the two elastic clamping plates 182 can be brought closer together, so that the protrusion parts 183 are disengaged from the tooth grooves of the corresponding tooth-shaped protrusions 172. Then, the telescopic plate 18 can be pulled forward. After being pulled out to the required length, the elastic clamping plates 182 are released, causing the elastic clamping plates 182 to return to their positions, so that the protrusion parts 183 are inserted into the tooth grooves of the corresponding tooth-shaped protrusions 172, achieving locking and fixation.

[0044] Furthermore, in the middle of the two handrails 30, there are formed vertical through holes with a rectangular cross-section. In the middle of the top of the front and back wall plates of the two handrails 30, there are formed clamping through holes 33. An upper limit sleeve body 34 is clamped in the top of the vertical through hole of the handrail 30. On the outer wall surfaces of the front and back wall plates of the upper limit sleeve body 34, there are formed oblique protrusion parts, which are clamped in the corresponding clamping through holes 33. On the outer side wall at the top of the upper limit sleeve body 34, there is formed a radially extending edge, and the bottom surface of the radially extending edge presses against the top surface of the handrail 30. The lower part of the telescopic rod 50 is inserted into the upper limit sleeve body 34, and the outer side wall of the lower part of the telescopic rod 50 is closely attached to the inner side wall of the corresponding upper limit sleeve body 34. A lower limit block 51 is fixed to the bottom end of the telescopic rod 50. The top surface of the lower part of the lower limit block 51 presses against or is close to the bottom end surface of the corresponding upper limit sleeve body 34. The clamping part formed in the middle of the top surface of the lower limit block 51 is clamped in the lower end of the middle through hole of the telescopic rod 50.

[0045] Furthermore, at the top of the two handrails 30, two lifting adjustment sleeves 60 are inserted. The inner side wall of the lifting adjustment sleeve 60 is close to or closely attached to the outer side wall of the top of the handrail 30. An intermediate holding part 61 is fixed between the two lifting adjustment sleeves 60;

[0046] The upper parts of the left and right plates away from each other of the two handrails 30 are formed with vertically aligned positioning side through grooves 35, the middle part of the bottom surface of the corresponding side plate of the lifting adjustment sleeve 60 is formed with an upwardly extending through groove, the middle part of the top surface of the through groove is formed with a downwardly extending elastic snap portion 610, the lower part of the inner side wall of the elastic snap portion 610 is formed with a positioning protrusion 62, the positioning protrusion 62 is inserted into the corresponding positioning side through groove 35, and the inner end thereof extends out of the inner end of the corresponding positioning side through groove 35 and is located in the limiting groove 511 formed at the bottom of the outer side wall of the corresponding lower limit block 51.

[0047] Furthermore, the tops of the two telescopic rods 50 are fixed with a same top handle portion 70 .

[0048] The left and right sides of the front portion of the top plate of the cart chassis 10 are both formed with a front blocking portion extending downward.

[0049] When the present embodiment is in use, the elastic buckle parts 610 of the two lifting and adjusting sleeves 60 can be pulled outwards, so that the positioning protrusions 62 are moved out of the corresponding positioning side through grooves 35. At this time, the middle gripping part 61 can be held and moved downwards, so that the two lifting and adjusting sleeves 60 are moved downwards, so that the positioning protrusions 62 are clamped into the corresponding positioning side through grooves 35 below, and the fixing is realized, and the position adjustment is realized;

[0050] At the same time, when the positioning protrusion 62 is moved out of the corresponding positioning side through groove 35, the top handle portion 70 can be held to move the two telescopic rods 50 downward and retract them into the handrail 30 to reduce;

[0051] Then, use both hands to bring the two vertical push rods 151 together to compress the compression spring 1. At this time, the outer ends of the left transverse rod 41 and the right transverse rod 42 retract and extend out from the through holes of the side panels of the corresponding bottom reinforcement sleeve 31 and the corresponding through holes of the side panels at the bottom of the handrail 30. At this time, the two handrails 30 can be flipped down to the placement groove 12 to achieve folding and reduce space occupancy.

[0052] Among them, a protrusion is formed in the middle of the left and right inner walls of the placement groove 12, which can be clamped between the two protrusions when the handrail 30 is inserted into the placement groove 12, thereby achieving elastic clamping and preventing separation.

[0053] In this embodiment, the wheel pusher 20 is a circular wheel body, which is movably connected to both ends of the transverse connecting shaft 11 through bearings. It can be used as an ordinary cart.

[0054] like Figures 10 to 11 As shown, the wheel pushing device 20 includes a tripod body, the middle part of the tripod body is movably connected to the two ends of the transverse connecting shaft 11 through bearings, and the upper part, front part and rear part of the tripod body are all movably provided with climbing wheels 21 through bearings.

[0055] This tripod and the climbing wheel 21 can enable this trolley to perform climbing operations along the stairs.

Claims

1. A portable trolley, comprising a trolley chassis (10), characterized in that: A transverse connecting shaft (11) is fixed to the rear of the cart chassis (10), and both ends of the transverse connecting shaft (11) extend out of the outer side walls of the left and right side plates of the cart chassis (10) and fix the wheel device (20); The left and right parts of the top surface of the cart chassis (10) are both formed with downwardly extending placement grooves (12), the placement grooves (12) extend forward and backward, the lower parts of the two handrails (30) are inserted into the rear parts of the placement grooves (12), and the transverse connecting shafts (11) are inserted into the transverse through holes extending left and right at the lower parts of the two handrails (30); A transverse positioning mechanism (40) is installed on the middle bottom surface of the top plate at the rear of the cart chassis (10), the left end of the left transverse rod (41) of the transverse positioning mechanism (40) extends out of the through hole of the right side wall of the left placement groove (12) and is inserted into the positioning through hole on the right side wall of the lower part of the left handrail (30), and the right end of the right transverse rod (42) of the transverse positioning mechanism (40) extends out of the through hole of the left side wall of the right placement groove (12) and is inserted into the positioning through hole on the left side wall of the lower part of the right handrail (30).

2. A portable trolley according to claim 1, wherein: The middle bottom surface of the top plate at the rear of the cart chassis (10) is formed with two transverse plate portions (13) extending downward and left and right, the bottom ends of the two transverse plate portions (13) are fixed with a same bottom baffle plate (14), an inner cavity is formed between the transverse plate portions (13), the bottom baffle plate (14) and the top plate at the rear of the cart chassis (10), two moving blocks (15) are placed in the inner cavity, the front and rear side walls of the moving blocks (15) are close to the front and rear inner side walls of the inner cavity, and the top surfaces of the two moving blocks (15) are formed or fixed with vertically movable Rod (151), two vertical toggle rods (151) are inserted into two transverse grooves (16) formed on the top plate at the rear of the cart chassis (10), the top of the vertical toggle rod (151) extends out of the top of the transverse groove (16), the opposite wall surfaces of the two moving blocks (15) are formed with inner grooves, the compression spring (1) is inserted into the two inner grooves, the inner end surface of the inner groove is formed with a convex portion, the end of the compression spring (1) is in the convex portion, and the two ends of the compression spring (1) are pressed against the inner end surfaces of the two inner grooves; A left transverse rod (41) and a right transverse rod (42) are respectively formed on the outer end surfaces of the two moving blocks (15), and the outer ends of the left transverse rod (41) and the right transverse rod (42) both extend out of the inner cavity, and a bottom reinforcement sleeve (31) is inserted on the lower outer wall of the handrail (30), and the bottom reinforcement sleeve (31) is fixed at the lower part of the handrail (30), and the outer ends of the left transverse rod (41) and the right transverse rod (42) both extend out of the corresponding through holes of the side plates of the bottom reinforcement sleeve (31) and extend into the corresponding through holes of the side plates at the lower part of the handrail (30).

3. The portable trolley according to claim 1, characterized in that: The bottom surface of the placement groove (12) is lower at the rear and higher at the front; The wheel pushing device (20) is a circular wheel body, which is movably connected to the two ends of the transverse connecting shaft (11) through bearings.

4. A portable trolley according to claim 1, characterized in that: The described trolley wheel device (20) includes a tripod body. The middle part of the tripod body is movably connected to both ends of the transverse connecting shaft (11) through bearings. Climbing wheels (21) are movably connected to the upper, front and rear parts of the tripod body through bearings.

5. A portable trolley according to claim 1, wherein: Hook sleeve bodies (2) are fixed on the outer side walls of the middle parts of the two handrails (30). An elastic piece (3) extending upward is formed on the rear wall surface of the hook sleeve body (2). A front convex part (4) bent forward is formed at the top of the elastic piece (3). The front end of the front convex part (4) is close to the rear wall surface of the hook sleeve body (2), and the top end of the front convex part (4) extends obliquely backward.

6. A portable trolley according to claim 1, wherein: A lower limit housing (17) is fixed in the middle of the bottom surface of the front part of the top plate of the trolley chassis (10). The telescopic plate (18) is inserted into the lower limit housing (17). The front end of the telescopic plate (18) extends out of the front end of the lower limit housing (17) and is formed with a middle blocking part (181) bent upward and extending. Positioning through grooves (171) extending forward and backward are formed in the left and right parts of the bottom plate of the lower limit housing (17). Tooth-shaped protrusions (172) extending forward and backward are formed on the inner sides of the two positioning through grooves (171) on the sides away from each other. Elastic clamping plates (182) extending downward are formed on the left and right parts of the bottom surface of the telescopic plate (18). A plurality of protrusions (183) are formed on the outer side walls of the elastic clamping plates (182). The protrusions (183) are inserted into the tooth grooves of the corresponding tooth-shaped protrusions (172).

7. A portable trolley according to claim 6, wherein: Middle guiding pieces (184) are formed on the left and right parts of the middle of the bottom surface of the telescopic plate (18). One side wall of the middle guiding piece (184) is close to the inner side wall of the corresponding positioning through groove (171).

8. A portable trolley according to claim 1, wherein: Vertical through holes with a rectangular cross-section are formed in the middle parts of the two handrails (30). Clamping through holes (33) are formed in the middle of the top parts of the front and rear wall plates of the two handrails (30). An upper limit sleeve body (34) is clamped in the top part of the vertical through hole of the handrail (30). Oblique protrusions are formed on the outer wall surfaces of the front and rear wall plates of the upper limit sleeve body (34), and are clamped in the corresponding clamping through holes (33). A radially extending edge is formed on the outer side wall of the top end of the upper limit sleeve body (34). The bottom surface of the radially extending edge presses against the top surface of the handrail (30). The lower part of the telescopic rod (50) is inserted into the upper limit sleeve body (34). The outer side wall of the lower part of the telescopic rod (50) is closely attached to the inner side wall of the corresponding upper limit sleeve body (34). A lower limit block (51) is fixed at the bottom end of the telescopic rod (50). The lower top surface of the lower limit block (51) presses against or is close to the bottom end surface of the corresponding upper limit sleeve body (34). A clamping part formed in the middle of the top surface of the lower limit block (51) is clamped in the lower end of the middle through hole of the telescopic rod (50).

9. A portable trolley according to claim 8, wherein: Two lifting adjustment sleeves (60) are inserted at the top parts of the two handrails (30). The inner side wall of the lifting adjustment sleeve (60) is close to or closely attached to the outer side wall of the top part of the handrail (30). An intermediate holding part (61) is fixed between the two lifting adjustment sleeves (60); On the upper parts of the left and right side plates of the two handrails (30) that are far away from each other, there are positioning side through grooves (35) that are aligned vertically. In the middle of the bottom surface of the corresponding side plate of the lifting adjustment sleeve (60), there is a through groove extending upward. In the middle of the top surface of the through groove, there is an elastic buckle portion (610) extending downward. On the lower part of the inner side wall of the elastic buckle portion (610), there is a positioning protrusion (62). The positioning protrusion (62) is inserted into the corresponding positioning side through groove (35), and its inner end extends out of the inner end of the corresponding positioning side through groove (35) and is located in the limiting groove (511) formed at the bottom of the outer side wall of the corresponding lower limiting block (51).

10. A portable trolley according to claim 8, wherein: The tops of the two telescopic rods (50) are fixed to the same top grip portion (70).

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