TWI721902B - Adjustable pallet truck - Google Patents

Abstract

An adjustable pallet truck with a bottom frame, the bottom frame is composed of at least one rod on each of the left and right sides, each side rod is connected by at least one connecting rod at the front and rear, and each side rod is equipped with a wheel frame at the front and rear. The bottom is pivotally connected with a universal roller that can be equipped with a brake, and each side rod can be connected with a side bottom plate, and an adjustment group is provided on the underframe. The adjustment group can make the pallet tilt, and the adjustment group can be fixed on The bottom frame is in the shape of a person and a top frame. The top frame has a support rod and a support rod on the left and right sides. Each support rod is connected by an upper rod and a lower rod, and the two ends of the lower rod are connected. It can lean against the top surface of the base frame. Each support rod is connected by an upper revolving rod and a lower rod. The two ends of the upper revolving rod are pivotally connected to the two supporting rods, so that both ends of the lower rod can lean against the top surface of the base frame. , There is a short rod in the lower rod, the other end of the short rod is connected with a clamping piece, and the clamping piece is connected to the middle of the lower rod. The lower end of each supporting rod is connected with an elastic sliding rod, and the sliding rod slides out of the supporting rod. It can be buckled to the bottom surface of the underframe, and the non-support side of the two supporting bars can be connected with a supporting plate.

Description

Adjustable pallet truck

The present invention relates to an inclined cart, in particular to a structure of an adjustable cart.

The conventional tilting rear-tilting cart has previously been proposed by the inventor. The main tilt is fixed to the telescopic adjustment cart with a side frame, but in actual use, the body structure is small, the application range is limited, and transportation is restricted. The support is also insufficient. In order to provide items that are more in line with actual needs, the creators conduct research and development to solve the problems that are likely to arise in the use of conventional knowledge.

The main purpose of the present invention is to provide an adjustable pallet truck, so that the pallet truck can be adjusted to have an inclined shape, and it is more convenient to carry various objects. The adjustment group is for the user to make the bottom frame have a front high and back low shape or a front low and high back shape. The adjustment group can be a human-shaped top frame fixed to the bottom frame, so that the top frame on the bottom frame is inclined.

In order to achieve the above-mentioned object, the structure of the present invention is: it has a bottom frame, the bottom frame is composed of at least one rod on each of the left and right sides, and each side rod is connected by at least one connecting rod before and after each side rod. , The bottom of each wheel frame is pivotally connected with a universal roller capable of braking, and each side rod can be connected with a side bottom plate, and an adjustment group is set on the underframe. The adjustment group can make the pallet tilt, The adjustment group can have a longitudinal groove on each side of the U-shaped high wheel frame on the front side, so that the high wheel frame moves from low to high along the longitudinal groove, and the base frame produces a front high and back low shape for use; the adjustment group can be fixed on the bottom Frame A human-shaped top frame. The top frame has a support rod and a support rod on each of the left and right sides. Each support rod is connected by an upper rod and a lower rod, and the two ends of the lower rod can rest on the bottom. On the top surface of the frame, each support rod is connected by an upper revolving rod and a lower rod. The two ends of the upper revolving rod are pivotally connected to the two supporting rods respectively, so that the two ends of the lower rod can lean against the top surface of the base frame, and the lower abutting rods There is a short rod in the middle, the other end of the short rod is connected with a clasp, and the clasp is connected to the middle of the lower rod. The lower end of each rod is connected with an elastic sliding rod, which can be buckled to the outside of the rod when the sliding rod slides out. On the bottom surface of the underframe, a backing plate can be connected to the non-supporting side of the two supporting rods. The adjustment group can be front small universal rollers, rear large universal rollers, and the bottom frame produces a low front and a high shape for use. An auxiliary group is also provided on the bottom frame, and the auxiliary group can be a human-shaped top frame fixed to the bottom frame.

[Learning]

〔this invention〕

10: bottom frame

11: Sidebar

12: connecting rod

13: Wheel frame

14: Universal roller

15: side bottom plate

16: inner flange

17: Middle bottom plate

2: adjustment group

21: high wheel frame

22: Longitudinal slot

23: Front small universal roller

24: Rear big universal roller

3: adjustment group

30: Top shelf

31: Lean

32: strut

33: on the pole

34: down bar

35: Upswing rod

36: Downswing

37: short shot

38: card by sheet

39: Elastic slider

40: backing

41: Arc pole

45: jack

46: fixing screw

47: spring

48: Slider

49: hole

4: auxiliary group

50: lever

51: Rod Frame

52: Casing

53: stop

54: grab bar

55: arc hole

122: another link

121: connecting rod

141: Wheel

501: Tension Spring

In order to enable your reviewer to further understand the technology, means and effects of the present invention to achieve the intended purpose, a preferred and feasible embodiment is given, and the detailed description with the drawings is as follows, I believe the purpose and features of the present invention And the advantages, you can get an in-depth and specific understanding from this.

The first figure is a perspective view of the present invention.

The second figure is a three-dimensional exploded view of the present invention.

The second figure A is a side view of the second figure of the present invention.

The second figure B is a side view of the second figure of the present invention without auxiliary group and two tie rods. (Only the top shelf of the adjustment group is displayed)

The third figure is another three-dimensional exploded view of the present invention. (The display adjustment group is a high wheel stand)

The fourth figure is a side view of another embodiment of the present invention. (The display adjustment group is the size of the universal wheel)

Figure 5 is a partially cut-away perspective view of the right side of Figure 1 of the present invention. (Display adjustment The group is fixed to the chassis)

Figure 5A is an enlarged perspective view of the circle part of Figure 5 of the present invention.

The sixth picture is the bottom three-dimensional view of the left part of the second picture of the creation.

Picture 6A is a partial three-dimensional view of the right side of Picture 6 of the creation. (With the pull rod when it is pulled out and lifted upwards)

The seventh image is a partial three-dimensional view of the right side of the sixth A of the creation. (When the tie rod is not pulled out, and the display rod holder is connected with a pair of connecting rods)

The eighth picture is a partial three-dimensional view of the seventh picture from the right. (When the pull rod is pulled out, the display rod holder is connected with a connecting rod)

Picture 8A is a partial three-dimensional view of the right side of Picture 8 of the creation. (The pull rod and the rod holder are removed, and the auxiliary group supporting rods added to the display are only the short rod and the clip when the support rod is removed)

The ninth picture is a three-dimensional view of the first picture of the creation when carrying the box.

The tenth picture is the side view of the first picture of the creation when the pipe is moved.

The eleventh figure is another embodiment of the creation.

As shown in the first to the eleventh figure, it is an adjustable pallet car of the present invention, in which the first, second, second A, and second B figures have an underframe 10, which is composed of left and right sides Each has at least one side rod 11, each side rod 11 is connected by at least one connecting rod 12 front and rear, and each side rod 11 is pivotally connected to the bottom of a wheel frame 13 at the front and rear of each side rod 11 with a universal roller 14 capable of braking. The basic implementation is the second figure B), an adjustment group 2 or 3 is provided on the underframe 10, and the adjustment group 2 or 3 can cause the pallet truck to incline. And each side rod 11 can be connected with a side bottom plate 15, and the opposite sides of the two side bottom plates 15 are connected to a middle bottom plate 17 with an inner protruding edge 16. Among them, the adjustment group 2 is to make the chassis 1 produce a front high and back low shape or a front low and back high shape for users (such as the third and fourth Figure). The adjustment group 3 can be a human-shaped top frame 30 fixed to the bottom frame 10 so that the top frame 30 on the bottom frame 1 is inclined (as shown in the second figure).

(As shown in the third figure) The adjustment group 2 can have a U-shaped front side and one high wheel frame 21 has a longitudinal long groove 22 on each side, so that the high wheel frame 21 moves from low to high along the longitudinal groove 22, and the underframe 10 produces a front high The back low state is for use. That is, the height difference between the original wheel frame 13 and the high wheel frame 21 is formed, and the bottom frame 10 is inclined.

(As shown in the first figure) The adjustment group 3 can be a top frame 30 fixed to the bottom frame 10 in a human shape. The top frame 30 has a support rod 31 and a support rod 32 on each of the left and right sides, and each support rod 31 is up and down. An upper rod 33 and a lower rod 34 are connected to each other, and the two ends of the lower rod 34 can lean against the top surface of the base frame 10, and each support rod 32 is connected with an upper rotating rod 35 and a lower rod 36. Both ends of the upper rotating rod 35 are pivotally connected to the two supporting rods 31, so that both ends of the lower rod 36 can lean against the top surface of the base frame 10. In the upper rotating rod 35, there is a short rod 37, and the other end of the short rod 37 is connected to a card. The supporting piece 38 (the arc-shaped tube-shaped piece in the figure) is connected to the middle of the lower rod 36 (the round tube in the figure) by the locking piece 38, and the lower end of each supporting rod 31 is respectively connected with an elastic sliding rod 39 for elastic sliding The rod 39 slides out of the supporting rod 31 and can be buckled to the bottom surface of the underframe 10 (as shown in Figures 5 and 5A); in addition, two supporting rods 31 can be connected to a supporting plate 40 on the side of the non-supporting rod 32; the outer middle section of each supporting rod 31 There is an arc rod 41. The short rod 37 can be connected to the lower rod 36, and a socket 45 is provided with a fixing screw 46 to adjust the length of the short rod 37 extending out of the socket 45, so that the adjustment group 3 can have a variety of inclination ( As shown in Figure 8A). The supporting rod 31 and the supporting rod 32 can be a single rod or three rods. In addition, (as shown in Figures 6 and 6A), the lower ends of the struts 31 can extend and are respectively connected to an elastic sliding rod 39, and the elastic sliding rod 39 can be buckled to the bottom surface of the chassis 10 by sliding out of the supporting rod 31. The elastic sliding rod 39 has a spring 47 against a sliding rod 48, the sliding rod 48 slides out and slides in through the hole 49 of the supporting rod 31, and the spring 47 is clamped in the supporting rod 31. In each figure, the top frame 30 is a middle-inserted bottom frame type, and it can also be a two-side clamping type. The short rod 37 and the insertion hole 45 can be replaced by bolts and nuts.

(As shown in the fourth picture) The adjustment group 2 can be the front small universal roller 23 or the rear large universal roller 24. The bottom frame 10 is low in the front and high in the back for use.

Among them, the adjustment group 2 can use the nut and bolt (stud) group, or the hydraulic device, or the retractor, or the multi-stage buckle assembly, etc., to produce the bottom frame 10, the wheel frame 13 (replace the longitudinal groove 14 ) Adjust the height or let the top frame 30 (instead of the strut 32) adjust the front and back tilt. The present invention can be used in folding tables, folding chairs, tables, chairs, round tables, square tables, table frames, furniture, cabinets, flat plates, wooden boards, slates, glass plates, round pipes, cylinders, water pipes, various cartons and packing boxes. The handling. It has the effect of slipping off during transportation.

(As shown in the first and third figures), an auxiliary group 4 is further provided on the bottom frame 10, and the auxiliary group 4 can be a human-shaped top frame 30 fixed to the bottom frame 10 (the same as the above). The top frame 30 has a supporting rod 31 and a supporting rod 32 on each of the left and right sides. Each supporting rod 31 is connected by an upper rod 33 and a lower rod 34 respectively, and the two ends of the lower rod 34 can lean against On the top surface of the underframe 10, each support rod 32 is connected up and down by an upper rotating rod 35 and a lower rod 36. Both ends of the upper rotating rod 35 are pivotally connected to the two supporting rods 31, so that the two ends of the lower rod 36 can lean against On the top surface of the underframe 10, a short rod 37 is directly connected to the upper rotating rod 35. The other end of the short rod 37 is connected to a locking piece 38. The locking piece 38 is connected to the middle of the lower rod 36. The elastic sliding rod 39 can be buckled to the bottom surface of the underframe 10 when the elastic sliding rod 39 slides out of the supporting rod 31. The two supporting rods 31 can be connected to a backing plate 40 on the side of the non-supporting rod 32; Rod 41. Where the short rod 37 can be connected to the lower rod 36, a socket 45 is provided with a fixing screw 46 to adjust the length of the short rod 37 extending from the socket 45, so that the auxiliary group 4 can have a variety of inclination ( As shown in Figure 8A).

(As shown in the eighth figure), in the middle of a connecting rod 12 connected between one end of each pair of side rods 11, a U-shaped rod frame 51 is connected with a pull rod 50 that can be retracted. (As shown in the seventh and eighth figures) the pull rod 50 can be inserted and sleeved in the sleeve 52 of the rod holder 51. The rear end of the pull rod 50 has a stop 53 (which can be a screw or a pin stuck outside the rear end of the casing), and the front end of the pull rod 50 has a grab bar 54 (it is a horizontal tube perpendicular to a straight tube). 50). (As shown in the seventh figure) where the rod frame 51 is located on a pair of connecting rods 121, the rod frame 51 is pivotally connected to the other connecting rod 122 on the inner side, and the rod frame 51 is pivoted to the back by an arc hole 55. One of the outer connecting rods 121 is on. The pull rod 50 can be installed and used on one side or both sides of the underframe 10. Please refer to the second, seventh, and eighth drawings together. The rod frame 51 is also covered with a tension spring 501 that bypasses the connecting rods 12 (121, 122). When the tension rod 50 is dropped, the tension spring 501 causes the tension rod 50 to be restricted. reset. The pull rod can be a pull rope or the like.

The eleventh figure is another embodiment of the creation. Like the second figure, the two front wheel frames 13 are respectively provided with one universal roller 14 that can brake, but the two rear wheels 141 in the eleventh figure They are directly arranged between the pair of side rods 11, and the height of the wheel frame 13 is reduced to form a rearwardly inclined vehicle body shape.

In summary, the present invention uses different positions to adjust the angle of the bottom frame and the top frame to form an inclined car body shape, combined into a variety of implementations; two implementations (such as the ninth and tenth figures) are proposed to carry the box. Or pipe fittings, etc.; as a whole, it is the easiest to understand and implement, and it is variable, so it can provide good usability, and it is a completely different organization from the conventional ones.

The above are detailed descriptions and drawings of the preferred embodiments of the present invention, and are not intended to limit the present invention. All the scope of the present invention should be subject to the following patent scope, and the spirit of the patent scope and similarly modified embodiments Both and similar structures should be included in the present invention.

10: bottom frame

13: Wheel frame

14: Universal roller

3: adjustment group

30: Top shelf

4: auxiliary group

50: lever

51: Rod Frame

501: Tension Spring

Claims (17)

An adjustable pallet truck with a bottom frame, the bottom frame is composed of at least one rod on each of the left and right sides, each side rod is connected by at least one connecting rod at the front and rear, and each side rod is equipped with a wheel frame at the front and rear. The bottom is pivotally connected with a universal roller that can be braked, and an adjustment group is provided on the underframe. The adjustment group can make the pallet tilt; among them, borrow from the middle of a connecting rod connected between the ends of each pair of side rods. A U-shaped rod frame is connected with a pull rod that can be retracted; the rod frame is located on a pair of connecting rods, the rod frame is pivotally connected to the other connecting rod on the inner side by a hole, and the rod frame borrows one The arc hole is pivotally connected to one of the connecting rods on the outer side; the rod frame is also sheathed with a tension spring that bypasses the connecting rod, and when the tension rod falls, the tension rod returns to its position due to the restriction of the tension spring. For the adjustable pallet truck described in item 1 of the scope of patent application, one side bottom plate can be connected to each side rod. For the adjustable pallet truck described in item 2 of the scope of patent application, the opposite sides of the two bottom plates are connected to a middle bottom plate with an inner flange. As described in item 1 of the scope of patent application, the adjustment set is for the user to make the undercarriage produce a front-high and rear-low shape or a front-low-back shape. As described in item 1 of the scope of patent application, the adjustment unit has a longitudinal slot on both sides of the wheel frame with a U-shape on the front side, so that the wheel frame moves from low to high along the longitudinal slot. The front high and the low state are produced for use. As described in item 1 of the scope of patent application, an auxiliary group is further provided on the underframe, and the auxiliary group can be a human-shaped top frame fixed to the underframe. As described in item 6 of the scope of patent application, the top frame has the left and right sides. There is a supporting rod and a supporting rod, each supporting rod is connected by an upper rod and a lower supporting rod, and the two ends of the lower supporting rod can lean against the top surface of the base frame, and each supporting rod has an upper rotating rod. The lower rod is connected, the two ends of the upper rotating rod are pivotally connected to the two supporting rods respectively, so that both ends of the lower rod can lean against the top surface of the base frame, the upper rotating rod is connected with a short rod, and the other end of the short rod is connected with a retaining piece , Connected to the middle of the lower rod by a leaning piece, an elastic sliding rod is connected to the lower end of each leaning rod, and the elastic sliding rod can be buckled to the bottom surface of the underframe when the elastic sliding rod slides out of the leaning rod, and the non-support side of the two leaning rods can be connected with one Backing board; each backing rod is connected with an arc rod in the middle section. As described in item 7 of the scope of patent application, the short rod can be adjusted by a fixing screw at the joint of the lower rod to adjust the extension length of the short rod, so that the auxiliary group can have a variety of inclination. For the adjustable pallet truck described in item 1 of the scope of patent application, the pull rod can be inserted into a tube in the rod frame. For the adjustable pallet truck described in item 1 of the scope of patent application, there is a stop at the rear end of the pull rod and a grab bar at the front end of the pull rod. As described in item 1 of the scope of patent application, the adjustment group can be front small universal rollers and rear large universal rollers, and the bottom frame has a low front and high rear for use. As described in item 1 of the scope of patent application, the adjustment group can be a top frame in the shape of a human being fixed to the bottom frame, so that the top frame on the bottom frame is inclined. As described in item 12 of the scope of patent application, the adjustment group can be a human-shaped top frame fixed to the bottom frame. The top frame has a support rod and a support rod on each of the left and right sides. The upper and lower support rods are connected by an upper rod and a lower rod, and the two ends of the lower rod can lean against the top surface of the underframe. Each support rod is connected by an upper rod and a lower rod, and two upper rods. The ends are pivotally connected to the two supporting rods respectively, so that the two ends of the lower rod can lean against the top surface of the base frame, the upper turning rod is in the middle of a short rod, and the other end of the short rod is connected with a clamping piece, It is connected to the middle of the lower rod by a clamping piece, and the lower end of each support rod is respectively connected with an elastic sliding rod, and the elastic sliding rod slides out of the support rod to be fastened to the bottom surface of the underframe. For the adjustable pallet truck described in item 13 of the scope of patent application, one of the two supporting rods can be connected to a supporting plate on the non-support side. For the adjustable pallet truck described in item 13 of the scope of patent application, an arc rod is connected to the outer middle section of each lean. As described in item 13 of the scope of patent application, the short rod can be adjusted by a fixing screw at the joint of the lower rod to adjust the extension length of the short rod, so that the adjustment group can have a variety of inclination. For example, the adjustable scooter described in item 1 of the scope of patent application, in which the front two wheel frames are respectively equipped with a universal roller that can brake, and the rear two wheels are respectively directly arranged between a pair of side rods. The height of the wheel frame is reduced, forming a rearwardly inclined car body shape.

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