TWM614538U - Height-adjustable cart - Google Patents

Abstract

A height-adjustable cart has a storage unit, a first support frame and a second support frame that are pivotally connected to each other, the first support frame is pivotally connected to the storage unit, and the second support frame is slidably connected The storage unit, the storage unit is also provided with a positioning group, the positioning group is used to position the first support frame and the second support frame at different opening and closing angles, thereby allowing the storage unit to be positioned at different heights Position to meet the different work needs of users.

Description

Height-adjustable cart

This new type of creation is related to a height-adjustable cart and an auxiliary device for work.

People put hand tools such as wrenches, screwdrivers and other materials on the tool cart to facilitate movement when performing mechanical assembly, equipment maintenance, or interior decoration;

The height of the general tool cart is fixed and cannot be adjusted, but everyone's body conditions are different, and may need to squat or stand while maintaining a different posture when working, so sometimes it may be inconvenient to get from the tool cart After getting the items, there is still room for improvement in their practicality.

In view of the above shortcomings, the creator of this new model believes that it is necessary to make corrections, so with years of experience in related technology and product design and manufacturing, upholding the good design concept, researching and creating the above defects, after continuous efforts, finally It is launching a new type of cart with adjustable height, in order to correct the product structure to enhance the excellent effect of the product.

The main purpose of the creation of the new model is to provide a tool cart structure that can be adjusted in height so that the user can easily take objects when working in different postures.

In order to achieve the purpose of the previous disclosure, the height-adjustable cart of the new creation includes:

An object holding unit has an object. The top of the object has two insertion holes spaced apart from each other and two clasp accommodating grooves respectively located beside the two insertion holes. The two clasp accommodating grooves are both recessed. There are two concave holes, the socket and the two adjacent concave holes are arranged in a straight line, the top of the object is provided with a plurality of storage parts, and the bottom of the object is recessed with a bottom groove extending to both ends of the object , The storage unit also has two rails, the rail has a main bar, and the top edge of the main bar extends with a sub bar. A predetermined angle is sandwiched between the main bar and the sub bar. The main bar The strip part runs through a chute, and the sub-strip part has a plurality of clamping grooves along the length of the chute. The two rails are symmetrically fixed on both sides of the bottom groove. In addition, a bottom groove is also fixedly arranged in the bottom groove. Button plate, the button plate is pivotally connected to a control button plate, the control button plate is recessed with a button groove, a button spring is also arranged between the control button plate and the button plate substrate, and the two ends of the button spring respectively abut against On the control button and the button substrate;

A support set has a first support frame and a second support frame pivotally connected in the middle section to form a cross shape, the top of the first support frame is pivotally connected to the two rails at the same time, and the top of the second support frame is A sliding rod is penetrated, and both ends of the sliding rod are respectively embedded in the sliding grooves of the two rails, so that the sliding rod can slide along the sliding grooves to change the opening between the first support frame and the second support frame. The bottom of the first support frame and the second support frame are respectively pivotally connected to a caster post, and the middle section of the two caster posts are respectively fixed to a set of posts, and the two sockets can be connected to each other. Telescopic, the other two caster posts are assembled with multiple casters;

A positioning set has two positioning pieces and two driving pieces. The two positioning pieces are respectively arranged beside the two rails. The positioning piece runs through a positioning piece shaft hole, a positioning piece through hole and a positioning piece through hole in sequence from one end to the other end. The upper edge of the positioning piece is protrudingly formed with at least one tooth, wherein the positioning piece shaft hole is penetrated with a guide shaft, and the guide shaft is embedded in the sliding groove of the rail, so that the guide shaft can follow the guide shaft. The sliding groove slides, and the positioning piece can be deflected up and down with the guide shaft as the axis, so that the clamping teeth can be inserted into or separated from the clamping groove of the rail, and the restriction hole is for the sliding rod to pass through and restrict The length of the hole is greater than the diameter of the sliding rod, so the deflection angle of the positioning piece is limited by the sliding rod within a certain range, and the two driving pieces are respectively arranged beside the two positioning pieces, and the driving piece moves from one end to the other. One end passes through a drive piece through hole, a drive piece shaft hole, and a set of connecting holes in sequence. The drive piece through hole and the positioning piece through hole simultaneously pass through a drive shaft, and the drive piece shaft hole is pierced by the sliding rod. However, the driving piece can swing up and down with the sliding rod as the axis to drive the positioning piece. The positioning group also has a linkage rod. The two ends of the linkage rod are respectively fixed in the connecting holes of the two driving pieces. Linking the two driving plates, the positioning set also has two positioning springs, both of the positioning springs are sleeved outside the sliding rod, and the two ends of one of the positioning springs are respectively pressed against the upper edge of one of the driving plates and the bottom groove At the top, the two ends of the other positioning spring respectively abut against the top edge of the other driving piece and the top of the bottom groove. When the linkage rod is not subjected to external force, the elastic force of the positioning spring causes the locking teeth to snap into the groove and Position the support group;

A pressure control handle pivoted in the bottom groove of the object to be swivelled up and down, and the pressure control handle passes through between the sliding rod and the linkage rod, so that the linkage rod presses down on the pressure control handle Therefore, when the pressure control handle swings upward, it will push the linkage rod and drive the teeth to escape from the groove, and the pressure control handle can be latched or separated from the button groove of the control button plate. When the pressure control handle is stuck in the button groove of the control button plate, the tooth is just stuck in the groove of the rail;

A limit set has two buckle pieces and two fixing pieces. One end of the buckle piece protrudes to form a buckle portion, and the bottom of the buckle piece protrudes to form a flange, and the two buckle pieces face the buckle piece accommodating piece with the flange. The state of the groove is respectively installed in the two clasp accommodating grooves of the object, the fixing piece is penetrated by a hole, and the two fixing pieces are fixed on the top of the object and respectively press against the two clasps, so that The buckle can only slide in the buckle accommodating slot without detaching, and the hole of the fixing piece also corresponds to the socket. In addition, the buckle can be latched by the flange to one of the Locating through recessed holes;

A grip handle with a U-shaped rod-shaped grip body. The outer side of the grip body is provided with a plurality of button holes. The two ends of the grip body are respectively inserted into the two holes from the holes of the two fixing pieces. In addition, when the flange of the clasp is clamped to the recessed hole closer to the insertion hole, the clasp of the clasp can be clamped into one of the clasp holes to position the grip handle at different heights.

The storage unit of the storage unit can be used to place items, and when the pressure control handle is snapped into the button groove of the control button, the teeth of the positioning group are also snapped into the groove of the rail, and the first support can be fixed. The frame and the second support frame are positioned at the current opening and closing angle, and the storage unit is also positioned at the current height position;

When you want to adjust the height of the storage unit, first press the control button to release the pressure control handle from the button groove, and then push the pressure control handle upward to drive the linkage rod and the driving piece to rotate around the sliding rod. In turn, the positioning piece is driven to deflect downward with the guide shaft as the axis, so that the teeth are separated from the slot, and then the user can freely adjust the opening and closing angle between the first support frame and the second support frame, thereby raising or lowering For the storage unit, when the pressure control handle is snapped back to the button groove after the adjustment, the positioning spring will push the moving piece and the positioning piece to reset, so that the teeth will be locked into the card slot again, and the storage unit will be positioned at the adjusted high and low position ；

In addition, when adjusting the storage unit, the buckle portion of the clasp can also be inserted into different buckle holes of the holding handle, and then the holding handle can be positioned at different heights relative to the holding unit.

Compared with the previous tool carts that cannot be adjusted in height, the new creation uses the positioning group to position the first support frame and the second support frame at different opening and closing angles, and then the storage unit can be raised or lowered, thereby allowing different heights. Users can easily take objects when they are in standing, sitting, and other working positions. It is obvious that the creation of this new model is an advanced product.

[Please refer to the first to sixth pictures] This new type of creation relates to an adjustable height cart, which includes:

A storage unit (1) has an object (11), and the top of the object (11) penetrates through two jacks (111) separated by a predetermined distance and two buckles respectively located beside the two jacks (111) The two buckle accommodating grooves (112) are recessed with two concave holes (112), and the insertion hole (111) and the adjacent two concave holes (113) are in a straight line Arranged, the top of the object (11) is provided with a plurality of objects (114), and each of the objects (114) is set in the shape of a groove, a hook, and an opening for placing objects. The object ( 11) The bottom is recessed with a bottom groove (115) extending to the two ends of the object (11). The storage unit (1) has two rails (12), and the rail (12) has a main bar ( 121), the top side of the main strip (121) extends with a secondary strip (122), the main strip (121) and the secondary strip (122) have a right angle between them, the main strip (121) A chute (123) penetrates, and the sub-strip portion (122) penetrates a plurality of card grooves (124) along the length of the chute (123). The two rails (12) are respectively fixed on the bottom symmetrically. On both sides of the groove (115), a button base plate (13) is also fixed in the bottom groove (115), and the button base plate (13) is pivotally connected to a control button plate (14), the control button plate (14) A button groove (141) is recessed, and a button spring (15) is also arranged between the control button plate (14) and the button plate base (13), and the two ends of the button spring (15) respectively abut against the control button Sheet (14) and the button sheet base plate (13);

A support group (2) has a first support frame (21) and a second support frame (22) pivotally connected to the middle section in a cross shape, and the top of the first support frame (21) is at the same time as the two rails The bars (12) are pivotally connected, and the top of the second support frame (22) is provided with a sliding rod (23). The diameter of the sliding rod (23) is equal to the groove width of the sliding groove (123). (23) Both ends are respectively embedded in the sliding grooves (123) of the two rails (12), so that the sliding rod (23) can slide along the sliding grooves (123) to change the first support frame (21) and The opening and closing angle between the second support frame (22), the bottom of the first support frame (21) and the second support frame (22) are respectively pivotally connected to a horizontal caster post (24), two casters A set of extension rods (25) are fixed to the middle section of the extension rods (24). The two socket extension rods (25) are sleeved with each other to expand and contract. The other two caster extension rods (24) are assembled with plural casters (26). ), and because the first support frame (21) and the second support frame (22) are both pivotally connected to the caster post (24), and the two sockets (25) are stretchable, so when the first support When the frame (21) and the second support frame (22) are opened and closed to different angles, each of the casters (26) can be kept standing on the ground, and one of the socket rods (25) is provided with a For the disassembled plug (251), the other socket rod (25) is penetrated with a plurality of pairs of rod holes (252), and the plug (251) can selectively pass through one of the pair of rod holes (252);

A positioning group (3) has two positioning pieces (31) and two driving pieces (32). The two positioning pieces (31) are respectively arranged beside the two rails (12). The positioning piece (31) extends from one end to the other The other end runs through a positioning piece shaft hole (311), a positioning piece through hole (312) and a restriction hole (313) in sequence. The positioning piece (31) protrudes and forms a plurality of teeth (314) on the upper edge. The positioning piece shaft hole (311) is penetrated with a guide shaft (33), and the guide shaft (33) is embedded in the sliding groove (123) of the rail (12), so the guide shaft (33) can be moved along The chute (123) slides, and the positioning piece (31) can swing up and down with the guide shaft (33) as the axis, so that the tooth (314) is stuck in or out of the grip of the rail (12). Slot (124), the restricting hole (313) is for the sliding rod (23) to pass through, and the length of the restricting hole (313) is greater than the diameter of the sliding rod (23), so the positioning piece (31) can be The deflection angle is limited by the sliding rod (23) within a certain range, and the two driving pieces (32) are respectively arranged beside the two positioning pieces (31), and the driving pieces (32) run through in sequence from one end to the other. There is a drive piece through hole (321), a drive piece shaft hole (322), and a set of connecting holes (323). The drive piece through hole (321) and the positioning piece through hole (312) are simultaneously pierced with a drive shaft ( 34), the driving piece shaft hole (322) is penetrated by the sliding rod (23), so the driving piece (32) can swing up and down with the sliding rod (23) as the axis to drive the positioning piece (31) ), the positioning group (3) also has a linkage rod (35). The two ends of the linkage rod (35) are respectively fixed on the assembly holes (323) of the two driving pieces (32) to connect the two driving pieces ( 32), the positioning set (3) also has two positioning springs (36), both of the positioning springs (36) are sleeved outside the sliding rod (23), and one of the positioning springs (36) abuts against both ends respectively Abut the upper edge of one of the driving pieces (32) and the top of the bottom groove (115), and the two ends of the other positioning spring (36) are respectively against the upper edge of the other driving piece (32) and the bottom groove (115) At the top, when the linkage rod (35) is not subjected to external force, the elastic force of the positioning spring (36) causes the tooth (314) to snap into the slot (124) to position the support group (2);

A pressure control handle (4) is pivoted on the bottom groove (115) of the object (11) to swing up and down, and the pressure control handle (4) passes through the sliding rod (23) and the linkage rod ( 35), the linkage rod (35) is pressed down against the pressure control handle (4), so the pressure control handle (4) will push the linkage rod (35) when it swings upwards and drive The tooth (314) is separated from the slot (124), and the pressure control handle (4) can be locked or separated from the button groove (141) of the control button piece (14), where the pressure control handle (4) ) When the button is locked in the button groove (141) of the control button (14), the tooth (314) just snaps into the groove (124) of the rail (12);

A limit set (5) has two buckles (51) and two fixing pieces (52). One end of the buckle (51) protrudes to form a buckle (511), and the bottom of the buckle (51) protrudes A flange (512) is formed, and the two clasps (51) are respectively installed in the two clasp accommodating grooves (11) of the object (11) with the flange (512) facing the clasp accommodating groove (112). In 112), the fixing piece (52) is penetrated by a hole (521), and the two fixing pieces (52) are fixed on the top of the object (11) and pressed against the two clasps (51) respectively. So that the cleat (51) can only slide in the cleat accommodating groove (112) without detaching, and the hole (521) of the fixing piece (52) also corresponds to the jack (111) at the same time. The clasp (51) can be positioned by allowing the flange (512) to be caught in one of the recessed holes (113);

A grip handle (6) with a U-shaped rod-shaped grip body (61). The outer side of the grip body (61) is provided with a plurality of button holes (62). The grip body (61) has two The ends are inserted into the two sockets (111) from the two holes (521) of the two fixing pieces (52), and when the flange (512) of the clasp (51) is locked in a distance from the socket (111) When it is close to the concave hole (113), the buckle part (511) of the buckle piece (51) can be inserted into one of the buckle holes (62) to position the grip handle (6) at different heights.

[Please refer to the first to sixth pictures] The storage parts (114) of the new creation can be used to place various items such as hand tools, parts, and measuring instruments. By combining the first support frame (21) and the second support The frame (22) is positioned at different opening and closing angles to raise or lower the storage unit (1), and the holding handle (6) is positioned at different heights relative to the storage unit (1). The shape can be changed to meet the user's work needs. As shown in the first figure, the first support frame (21) and the second support frame (22) are positioned at a smaller angle, so that the storage unit (1) is located at a higher position , And after the grip handle (6) is positioned at a lower position relative to the storage unit (1), it is convenient for the user to take things when working in a standing posture;

[Please refer to the seventh to tenth pictures together] To change the state, first adjust the position of the grip handle (6), as shown in the seventh picture, first push the clasp (51) away from the grip After the handle (6) makes the buckle part (511) free from the buckle hole (62), you can pull the grip handle (6) to a higher position, and then push the buckle piece (51) back to make the buckle part (511) After re-inserting the other button hole (62), the grip handle (6) can be repositioned;

Then adjust the position of the storage unit (1), mainly refer to the fourth and eighth pictures. First, push the control button (14) inward so that the pressure control handle (4) is out of the button groove (141). Push the pressure control handle (4) up to drive the linkage rod (35) and the driving piece (32) to deflect with the sliding rod (23) as the axis, and then drive the positioning piece (31) to guide the shaft (33) ) Is the downward deflection of the axis to allow the teeth (314) of the positioning piece (31) to escape from the slot (124). At this time, when the user presses the loading unit (1), the slide bar (23) will be The chute (123) slides, so that the angle between the first support frame (21) and the second support frame (22) is enlarged, and the juxtaposition unit (1) will drop accordingly, and the waiting unit (1) will drop to a suitable level After reaching the height, the user releases the pressure control handle (4) to re-insert it into the button groove (141). During the process, the positioning spring (36) will also be released and the linkage lever (35) is pressed against the pressure control handle. (4) Deflection back together, so that the positioning piece (31) is also deflected upward so that the clamping teeth (314) are re-inserted into the clamping slot (124) and positioned, so that the creation of the new model can be changed to the ninth and tenth pictures. The shape of the figure is convenient for the user to take objects in a squatting or sitting position, or to transport larger and heavier objects, and to raise the storage unit (1) again, follow the same method To position the first support frame (21) and the second support frame (22) at a smaller opening and closing angle;

The two sets of connecting rods (25) are respectively provided with a pin (251) and a rod hole (252), and the pin (251) passes through one of the pair of rod holes (252). The reason is that when the positioning group (3) has the teeth (314) Due to fatigue of the positioning spring (36) and other reasons, it is not stuck into the card slot (124). When the first support frame (21) and the second support frame (22) are suddenly opened, the latch (251) will abut against the rod. The end of the hole (252) is to prevent the first support frame (21) and the second support frame (22) from continuing to open, so as to prevent the storage unit (1) and the items on it from falling sharply, so as to improve the safety of the cart. Therefore, before the user wants to adjust the height of the cart, he can first pull out the plug (251), and after adjusting to the desired height, insert the plug (251) back into the corresponding rod hole (252) at this time to ensure safety;

[Please refer to the eleventh figure together] The additional object (11) can have a pair of storage holes (116) penetrated along the length direction, and the grip handle (6) removed from the socket (111) can be inserted into the storage hole ( 116) to facilitate the storage or transportation of the new creation.

Only the above is only a preferred embodiment of the creation of the new type, and should not be used to limit the scope of the creation of the new type. That is to say, all equal changes and modifications made in accordance with the scope of the patent application should still fall within the scope of this creation patent.

In summary, when it is known that the creation of this new model is novel and progressive, and that the creation of this new model has not been seen in any publication, it should comply with the provisions of Article 104 of the Patent Law, Article 120 of the Patent Law and Article 22 of the Approval.

1: Storage unit １１: Place the object 111: jack 112: Clasp slot 113: Recessed hole 114: Storage Department 115: Bottom slot 116: Storage hole 12: Rails 121: The main section 122: Deputy Article Department 123: Chute 124: Card slot 13: Button substrate 14: Control button 141: Button groove 15: Button spring 2: Support group 21: The first support frame 22: The second support frame 23: Slider 24: Caster post 25: Socket rod 251: Bolt 252: Rod hole 26: Casters 3: Positioning group 31: Positioning film 311: Positioning film shaft hole 312: Positioning piece through hole 313: Restriction hole 314: Card tooth 32: Driving film 321: Drive through hole 322: Drive film shaft hole 323: Group connection hole 33: Guide shaft 34: Drive shaft 35: Linkage rod 36: Positioning spring 4: Pressure control handle 5: Limit group 51: Clasp 511: Buckle 512: Flange 52: Fixed piece 521: perforation 6: Grip the handle 61: Grip the handle 62: Button hole

The first picture is a three-dimensional view of the height-adjustable cart of the new creation. The second figure is a cross-sectional view of the height-adjustable cart of the new creation. The third figure is a partial exploded view of the height-adjustable cart of the new creation. The fourth figure is a three-dimensional view of some parts of the height-adjustable cart created by the new model. The fifth figure is a three-dimensional view of the positioning piece and the driving piece of the height-adjustable cart of the new creation. The sixth figure is another cross-sectional view of the height-adjustable stroller created by the new model. The seventh figure is a schematic diagram of the adjustable position of the grip handle of the height-adjustable stroller created by the present invention. The eighth figure is a schematic diagram of the pressure control handle of the height-adjustable stroller of the present invention being pushed up to drive the teeth out of the slot. The ninth figure is a cross-sectional view of the height-adjustable cart of the new creation. The tenth picture is a three-dimensional view of the height-adjustable cart of the new creation. The eleventh figure is a schematic diagram of the holding handle of the height-adjustable cart of the present invention being stored in the receiving hole.

1: Storage unit

11: Place objects

114: storage department

115: bottom slot

12: Rails

14: Control button

2: Support group

21: The first support frame

22: The second support frame

24: Caster post

25: socket rod

251: Bolt

252: Rod Hole

26: casters

3: Positioning group

31: positioning piece

32: Drive film

4: Pressure control handle

5: Limit group

51: clasp

52: fixed piece

521: Piece Hole

6: Grip the handle

61: Grip the handle

62: buttonhole

Claims (3)

A height-adjustable cart, including: An object holding unit has an object. The top of the object has two insertion holes spaced apart from each other and two clasp accommodating grooves respectively located beside the two insertion holes. The two clasp accommodating grooves are both recessed. There are two concave holes, the socket and the two adjacent concave holes are arranged in a straight line, the top of the object is provided with a plurality of storage parts, and the bottom of the object is recessed with a bottom groove extending to both ends of the object , The storage unit also has two rails, the rail has a main bar, and the top edge of the main bar extends with a sub bar. A predetermined angle is sandwiched between the main bar and the sub bar. The main bar The strip part runs through a chute, and the sub-strip part has a plurality of clamping grooves along the length of the chute. The two rails are symmetrically fixed on both sides of the bottom groove. In addition, a bottom groove is also fixedly arranged in the bottom groove. Button plate, the button plate is pivotally connected to a control button plate, the control button plate is recessed with a button groove, a button spring is also arranged between the control button plate and the button plate substrate, and the two ends of the button spring respectively abut against On the control button and the button substrate; A support set has a first support frame and a second support frame pivotally connected in the middle section to form a cross shape, the top of the first support frame is pivotally connected to the two rails at the same time, and the top of the second support frame is A sliding rod is penetrated, and both ends of the sliding rod are respectively embedded in the sliding grooves of the two rails. The first support frame and the second support frame are respectively pivotally connected to a caster rod, and the two caster rods are respectively fixedly connected One set of extension rods, two sets of extension rods are connected to each other, and the other two caster extension rods are assembled with plural casters; A positioning set has two positioning pieces and two driving pieces. The two positioning pieces are respectively arranged beside the two rails. The positioning piece runs through a positioning piece shaft hole, a positioning piece through hole and a positioning piece through hole in sequence from one end to the other end. The upper edge of the positioning piece is protrudingly formed with at least one clamping tooth, wherein the positioning piece shaft hole is penetrated with a guide shaft, the guide shaft is embedded in the sliding groove of the rail, and the restriction hole is provided for the sliding The rod passes through, and the length of the restricting hole is greater than the diameter of the sliding rod. The two driving pieces are respectively arranged beside the two positioning pieces. The driving piece passes through a driving piece through hole and a driving piece in sequence from one end to the other. A shaft hole and a set of connecting holes, the driving sheet through hole and the positioning sheet through hole are simultaneously pierced with a drive shaft, the driving sheet shaft hole is penetrated by the sliding rod, the positioning group also has a linkage rod, the The two ends of the linkage rod are respectively fixed in the connecting holes of the two driving plates, the positioning group also has two positioning springs, both of the positioning springs are sleeved outside the sliding rod, and the two ends of one of the positioning springs are respectively pressed against On one of the upper edges of the driving piece and the top of the bottom groove, the two ends of the other positioning spring abut against the other top edge of the driving piece and the top of the bottom groove respectively, and the positioning spring is used to generate elastic force to make the teeth snap into The card slot to position the support group; A pressure control handle is pivoted on the bottom groove of the object, and the pressure control handle passes through between the sliding rod and the linkage rod, so that the linkage rod is pressed down against the pressure control handle, and the pressure control handle The handle is used to snap into the button groove of the control button piece; A limit set has two buckle pieces and two fixing pieces. One end of the buckle piece protrudes to form a buckle portion, and the bottom of the buckle piece protrudes to form a flange. The two buckle pieces are respectively installed on two sides of the object. In the cleat accommodating groove, and the flange is clamped in one of the recessed holes, the fixing piece is penetrated by a hole, and the two fixing pieces are fixed on the top of the object and respectively press against the two clasps, And the hole of the fixing piece also corresponds to the socket; A grip handle with a U-shaped rod-shaped grip body. The outer side of the grip body is provided with a plurality of button holes. The two ends of the grip body are respectively inserted into the two holes from the holes of the two fixing pieces. , And the clasp of the clasp is inserted into one of the clasp holes. The height-adjustable cart according to claim 1, wherein the object has a pair of receiving holes extending through it along its length. The height-adjustable stroller according to claim 1, wherein one of the socket rods is penetrated with a detachable pin, and the other socket rod is penetrated with a plurality of pairs of rod holes, and the pin selectively penetrates Pass one of the pair of rod holes.

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