CN218208788U - Quick adjusting mechanism for lifting height of mobile cart - Google Patents

Abstract

The utility model discloses a high quick adjustment mechanism of removal shallow lift, including last stand and lower stand to the direction of use is the benchmark, it can follow vertical rectilinear sliding insert locate the stand inboard down, still includes the locating pin to go up the stand, the locating pin can follow the installation of the reciprocal slip settlement distance of horizontal direction on the stand lateral wall down, and locating pin one end stretches out and forms the operation end with stand lateral wall down, goes up and is equipped with two at least locating holes along longitudinal separation range on the stand lateral wall, the locating pin slides and makes its other end can insert in any locating hole on the stand lateral wall or withdraw from the locating hole outside of last stand, the utility model discloses simple structure, display altitude mixture control is convenient, only needs can accomplish alone in last stand and the lower stand accommodation process alone, and the stand is high with shallow base joint strength down, and stable in connection, locks a bolt and can accomplish, and the equipment is convenient.

Description

Quick adjusting mechanism for lifting height of mobile cart

Technical Field

The utility model relates to a display support, in particular to high quick adjustment mechanism goes up and down for a mobile cart.

Background

At present, family's big living room, the conference room, public place etc. all need adopt the removal shallow support to install the display, the stand of removal shallow support is generally cup jointed the equipment by last stand and lower stand and forms, the display is generally installed on last stand, it changes the display height through the relative slip in lower stand, after the upper stand slides to suitable position, need carry out fixed positioning with last stand and lower stand through fixing device, keep the display unchangeable at stable height, the structure of going up stand and lower stand fixed positioning mainly realizes through pressing from both sides tight friction mechanism at present, namely install a clamp block that can radial movement on the stand lateral wall down, clamp block surface mounting rubber etc. friction provides the device, through bolt and clamp block threaded connection on lower stand, make clamp block along lower stand radial movement through rotating the bolt, this kind of structure is comparatively complicated, and generally in order to keep the atress balance, need install a clamp block respectively in stand both sides and a bolt that is used for adjusting clamp block position, this kind of structure needs two bolts to rotate during the regulation, and use great gas rotation, just can be in the up the hole, the corresponding of the bolt can be passed through the slow run through the hole and can be connected in addition, otherwise, it can not enough to adjust to pass through the up the pole, it can slow run through the hole to be more to correspond.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects, the utility model provides a remove high quick adjustment mechanism of shallow lift should remove high quick adjustment mechanism of shallow lift can realize stand and lower stand quick positioning, realizes the high quick adjustment of display, simple structure, and it is convenient to adjust.

The utility model discloses a solve the technical scheme that its technical problem adopted: the utility model provides a high quick adjustment mechanism that removes shallow lift, includes stand and lower stand to the direction of use is the benchmark, it can follow the gliding inserting of vertical straight line and locate the stand inboard down to go up the stand, still includes the locating pin, the locating pin can follow the installation of the reciprocating sliding settlement distance of horizontal direction on the stand lateral wall down, and locating pin one end stretches out and forms the operation end with stand lateral wall down, goes up and is equipped with two at least locating holes along longitudinal separation arrangement on the stand lateral wall, the locating pin slides and makes its other end can insert in any locating hole on the stand lateral wall or withdraw from the locating hole outside of last stand.

As a further improvement of the utility model, still be equipped with elasticity and reset the piece, elasticity resets and provides the elasticity reset force of the inside direction of stand under the orientation for the locating pin, makes the locating pin other end keep inserting and locates in the locating hole on the stand lateral wall.

As the utility model discloses a further improvement, the locating pin is located and is equipped with a radial protruding retaining ring on one section circumference lateral wall of stand inboard down, and elasticity resets and is the pressure spring, and the locating pin outside is located to the pressure spring cover, and the both ends of the flexible direction of pressure spring elasticity tightly support respectively down on the radial protruding retaining ring terminal surface on stand inside wall and the locating pin circumference lateral wall.

As a further improvement, be formed with first non-circular hole on the stand lateral wall down, radial protruding fender ring cross section on the locating pin circumference lateral wall is the non-circular structure, the radial protruding fender ring of the locating pin other end and its circumference lateral wall of locating pin can insert the stand inboard down through first non-circular hole on the stand lateral wall down, radial protruding fender ring rotation on the locating pin circumference lateral wall can stop on the stand inside wall down after the locating pin pivot rotates the angle of settlement.

As a further improvement of the utility model, the locating pin exposes on one end in the lower stand outside still fixed mounting have the regulation handle of size increase, and the regulation handle backstop is on the stand outside surface down.

As a further improvement, locating pin one end is formed with the non-circular spliced pole, still is equipped with first buckle structure on this non-circular spliced pole lateral wall, adjusts and is equipped with the non-circular slot on hand, be equipped with second buckle structure on the non-circular slot inside wall, the non-circular spliced pole circumferencial direction locking that the locating pin was served is inserted and is located the non-circular slot of adjusting the handle, and first buckle structure is connected with second buckle structure lock and is made locating pin and adjusting handle axial locking location.

As a further improvement, the fixed cover that still is equipped with the external member outside down, external member one side is the double-deck lateral wall structure that is formed by inner wall and the parallel interval arrangement of outer wall, the distance is greater than radial protruding retaining ring axial thickness on the locating pin circumference lateral wall between the inner wall of external member one side and the outer wall, and radial protruding retaining ring on the locating pin circumference lateral wall can the pivoted hold in the clearance between the inner wall of external member one side and the outer wall, and be formed with on the inner wall of external member one side with the second non-circular hole that first non-circular hole aligns on the lower column lateral wall, be formed with on the outer wall of external member one side with the just right through-hole of second non-circular hole, locating pin one end can be rotated wear to locate in the through-hole, the radial protruding retaining ring of the locating pin other end and its circumference lateral wall of locating pin can insert the lower column inboard through second non-circular hole and first non-circular hole, can stop between external member inner wall after the setting angle is rotated around the locating pin pivot to radial protruding retaining ring rotation on the circumference lateral wall, the both ends of elastic expansion direction are supported on external member medial surface and the radial protruding retaining ring terminal surface on the circumference lateral wall respectively tightly.

As a further improvement, the external member upper end still is formed with the cross section for the shape of falling L shelters from the ring lid portion, shelter from in the vertical lateral wall of ring lid portion inserts the clearance of locating between last stand and the lower stand, shelter from the horizontal lateral wall of ring lid portion and cover in the clearance upper end between stand up end and last stand and the lower stand down.

As a further improvement, the structure that the fixed cover in the stand outside was equipped with the external member down is: the upper end of the lower upright post is provided with at least one positioning clamping groove at intervals, the side wall of the sleeve is fixedly provided with at least one protruding clamping point at intervals, and the protruding clamping point can be correspondingly clamped in the positioning clamping groove of the lower upright post.

As a further improvement, the utility model discloses a still be equipped with shallow base, be formed with along longitudinal separation's upper strata board and lower plywood on the shallow base, be formed with the upper jack that matches with lower stand appearance on the upper strata board, be equipped with at least one longitudinal extension's protruding structure in the location on the lower plywood, two or more than two location protruding structures interval arrangement on the plywood down, be formed with on the terminal surface under the lower stand with shallow base on the socket of location protruding structure one-to-one, the location protruding structure on the lower plywood can one-to-one insert locate in the socket on the terminal surface under the stand, still be equipped with at least one on the lower plywood of shallow base and connect the perforation, connect perforation and location protruding structure at horizontal direction interval arrangement, be formed with at least one connection screw under the stand on the terminal surface, wear to be equipped with connecting bolt in the connection perforation, connecting bolt and the connection screw of stand lower extreme, and connecting bolt head backstop are located under the plywood on the side surface.

The utility model has the advantages that: the utility model discloses a set up radial sliding's locating pin on the stand down, set up the locating hole of arranging along longitudinal separation on the last stand lateral wall, peg graft through the locating hole that slides on locating pin and the last stand different, realize the location connection of stand and stand down, still through setting up the radial protruding retaining ring of non-circular on the locating pin, set up first non-circular hole on the stand lateral wall down, make it can withdraw from stand inboard or block stand inboard down through rotating the locating pin, and then avoid maloperation to make the locating pin break away from the locating hole of stand, guarantee to go up stand regulation back position stabilization, more through setting up the elasticity piece that resets, make it accomplish the back to go up the stand after the regulation, in the locating pin automatic insertion stand, and keep in this position motionless, more through the external member of the two side lateral walls of stand outside installation down, make the non-circular radial protruding retaining ring of locating pin can hold and the backstop between the external member double-layer wall, make the stand height adjustment up, the stand height adjustment can not insert down inside to slide from top to the stand down and cause to interfere and block down, it is convenient to go up stand to adjust the stand, and accomplish alone the bolt stability alone, the stand is connected to a high intensity.

Drawings

FIG. 1 is an exploded view of an upper and lower upright height adjustment mechanism;

FIG. 2 is a perspective view of a locating pin;

FIG. 3 is a front view of the locating pin;

FIG. 4 is a top view of the locating pin;

FIG. 5 is a right side view of the locating pin;

FIG. 6 is a perspective view of the adjustment handle;

FIG. 7 is a front view of the adjustment handle;

FIG. 8 is a bottom view of the adjustment handle;

FIG. 9 is a left side view of the adjustment knob;

FIG. 10 is a front view of the positioning pin and adjustment handle assembly;

FIG. 11 isbase:Sub>A sectional view taken along line A-A of FIG. 10;

FIG. 12 is a front view of the kit;

FIG. 13 is a sectional view taken along line B-B of FIG. 12;

FIG. 14 is a left side view of the set;

FIG. 15 is a cross-sectional view taken along line C-C of FIG. 14;

FIG. 16 is a sectional view taken along line D-D of FIG. 14;

FIG. 17 is a front view of the dowel assembly and set assembly;

FIG. 18 is a cross-sectional view taken along line E-E of FIG. 17;

FIG. 19 is a sectional view taken along line E-E of FIG. 17;

FIG. 20 is a front view of the upper and lower upright height adjustment mechanisms;

FIG. 21 is a cross-sectional view taken along line F-F of FIG. 20;

FIG. 22 is a cross-sectional view taken along line F-F of FIG. 20;

FIG. 23 is a sectional view taken along line F-F of FIG. 20;

FIG. 24 is a front view of the lower upright;

FIG. 25 is a bottom view of the lower upright;

FIG. 26 is a sectional view taken along line G-G of FIG. 25;

FIG. 27 is a front view of the cart base;

FIG. 28 is a sectional view taken along line H-H in FIG. 27;

fig. 29 is an exploded view of the lower upright and cart base;

FIG. 30 is a front view of the lower column and the cart base in an assembled state;

FIG. 31 is a sectional view taken along line I-I of FIG. 30;

fig. 32 is a perspective view of a mobile cart according to the present invention.

Detailed Description

Example (b): the utility model provides a high quick adjustment mechanism that removes shallow lift, includes stand 1 and lower stand 2 to the direction of use is the benchmark, it can follow vertical rectilinear sliding insert locate down stand 2 inboards to go up stand 1, still includes locating pin 3, installing on stand 2 lateral walls down of horizontal direction reciprocating sliding settlement distance can be followed to locating pin 3, 3 one end stretches out and forms the operation end with 2 lateral walls of stand down, upward be equipped with two at least locating holes 4 along longitudinal separation arrangement on the stand 1 lateral wall, 3 slides and make its other end can insert in any locating hole 4 on the stand 1 lateral wall of last stand or withdraw from the locating hole 4 outsides of last stand 1.

During the use, install the display on last stand 1, insert last stand 1 and establish in stand 2 down, stand 1 is gone up to upper and lower pull, make locating hole 4 on its co-altitude just right with locating pin 3 on the stand 2 down, through operation locating pin 3 along stand 2 radial sliding down with last stand 1 lateral wall on locating hole 4 peg graft, realize that last stand 1 is in co-altitude department and stand 2 fixed position down, and then adjust the height of display on the stand 1, this adjustment mechanism only needs slide positioning pin 3 can realize, simple structure, it is convenient to adjust, 3 other end edge of locating pin is formed with chamfer structure or fillet structure, it inserts smoothly in the locating hole 4 of last stand 1 along stand 2 radial sliding in-process down to be convenient for.

And an elastic resetting piece is further arranged, and the elastic resetting piece provides elastic resetting force towards the inner direction of the lower upright post 2 for the positioning pin 3, so that the other end of the positioning pin 3 is kept inserted into the positioning hole 4 on the side wall of the upper upright post 1. Through the elasticity piece that resets make locating pin 3 in adjusting the locating hole 4 of accomplishing back automatic insertion last stand 1, with last stand 1 and stand 2 fixed connection together down, avoid going up 1 altitude mixture control of stand and forget after accomplishing that to slide locating pin 3 inwards and appear going up stand 1 and stand 2 condition emergence that do not have the location down.

The locating pin 3 is located and is equipped with a radial protruding retaining ring 5 on 2 inboard one section circumference lateral walls of stand down, and elasticity resets and is the pressure spring 6, and 3 outsides of locating pin are located to the pressure spring 6 cover, and the both ends of the flexible direction of pressure spring 6 elasticity tightly support respectively down on 2 inside walls of stand and the radial protruding retaining ring 5 terminal surfaces on 3 circumference lateral walls of locating pin. Compress tightly radial protruding retaining ring 5 on the 3 lateral walls of locating pin through pressure spring 6 and give 3 elasticity restoring force of locating pin, in addition, elasticity resets and also can be for the extension spring, holds the 2 inboard side direction movements of lower stand of spacer pin lateral wall, and this is the equivalent alternative structure that technical personnel in the field thought very easily according to this application, belongs to this application protection scope.

The utility model discloses a vertical column, including the locating pin 3, be formed with first non-circular hole 7 on the 2 lateral walls of lower stand, radial protruding fender ring 5 cross sections on the 3 circumference lateral walls of locating pin are non-circular structure, the 3 other ends of locating pin and the radial protruding fender ring 5 of 3 its circumference lateral walls of locating pin can insert 2 inboards down the stand through first non-circular hole 7 on the 2 lateral walls of lower stand, radial protruding fender ring 5 on the 3 circumference lateral walls of locating pin is rotatory around 3 pivot rotations set angle back can the backstop on 2 inside walls of lower stand. This structure makes things convenient for locating pin 3 and lower stand 2 to assemble, and can rotate the backstop under on 2 inside walls of stand, keep with last stand 1 on locating hole 4 be stable grafting state, avoid the mistake to bump locating pin 3 and make it withdraw from last stand 1's locating hole 4, cause stand 1 to descend by oneself, lead to the unable location of display.

The end, exposed out of the lower upright post 2, of the positioning pin 3 is also fixedly provided with an adjusting handle 8 with an enlarged size, and the adjusting handle 8 is stopped on the surface of the outer side of the lower upright post 2. The adjusting handle 8 with the increased size is used for sliding and rotating the positioning pin 3, so that the operation is convenient.

The utility model discloses a regulation handle 8, including locating pin 3, the non-circular spliced pole 9 is formed with on this non-circular spliced pole lateral wall still be equipped with first buckle structure 10, is equipped with non-circular slot 11 on the regulation handle 8, be equipped with second buckle structure 12 on the non-circular slot 11 inside wall, the locking of the non-circular spliced pole 9 circumferencial direction on locating pin 3 one end is inserted and is located the non-circular slot 11 of regulation handle 8, and first buckle structure 10 and the 12 lock of second buckle structure are connected and are made locating pin 3 and 8 axial locking location of regulation handle. Through the grafting of non-circular spliced pole 9 and non-circular slot 11, realize adjusting handle 8 and 3 circumferencial direction locking connection of locating pin, through first buckle structure 10 and second buckle structure 12 lock connection realization adjusting handle 8 and 3 axial locking connection of locating pin, and then realized adjusting handle 8 and locating pin 3 fixed connection, wherein first buckle structure 10 best is the evagination back-off, second buckle structure 12 then corresponds is the indent draw-in groove, and the last non-circular spliced pole 9 radial minimum dimension of locating pin 3 best is less than the radial dimension of locating pin 3, adjusting handle 8 towards 2 one end surface of lower upright post backstop on the step face between non-circular spliced pole 9 and locating pin 3, this structure can make first buckle structure 10 and second buckle structure 12 stable lock connection, avoid the dropout, this structure makes adjusting handle 8 and locating pin 3 into the components of a whole body structure, be convenient for locating pin 3 installs on lower upright post 2, in addition the two also can make into an organic whole body structure, adjusting handle 8 can also can form an organic whole body structure through the mode of moulding plastics with locating pin 3 fixed connection.

The fixed cover in 2 outsides of lower stand still is equipped with external member 13, external member 13 one side is the double-deck lateral wall structure that is formed by inner wall 14 and the parallel interval arrangement of outer wall 15, the distance is greater than radial protruding retaining ring 5 axial thickness on the 3 circumference lateral walls of locating pin between the inner wall 14 of external member 13 one side and the outer wall 15, and radial protruding retaining ring 5 on the 3 circumference lateral wall of locating pin can the pivoted hold in the clearance between inner wall 14 and the outer wall 15 of external member 13 one side, and is formed with the second non-circular hole 16 that aligns with first non-circular hole 7 on the lower stand 2 lateral wall on the inner wall 14 of external member 13 one side, is formed with the through-hole 17 just right with second non-circular hole 16 on the outer wall 15 of external member 13 one side, 3 one end can the pivoted wear to locate in through-hole 17 locating pin, and 3 other end and the radial protruding retaining ring 5 of locating pin 3 its circumference lateral wall can insert to the lower stand 2 inboard through second non-circular hole 16 and first non-circular hole 7, radial protruding retaining ring 5 on the circumference lateral wall of locating pin 3 rotates around locating pin 3 pivot and can be set for the angle after can be in external member 13 and the tight terminal surface of the radial protruding retaining ring 15 on the flexible external wall of two sets for the pressure spring 6 and the radial on the peripheral side of locating pin 3 respectively. By fixedly sleeving the sleeve 13 on the upright post, the inner wall 14 of the sleeve 13 is attached to and positioned on the outer side surface of the lower upright post 2, the outer wall 15 and the inner wall 14 on one side of the sleeve 13 together form a space for the radial protruding baffle ring 5 on the positioning pin 3 to rotate and accommodate, after the positioning pin 3 is withdrawn to the outer side of the upper upright post 1, the radial protruding baffle ring 5 on the positioning pin 3 just enters the space, at the moment, the positioning pin 3 rotates for a set angle, the radial protruding baffle ring 5 on the positioning pin 3 is stopped at the outer side of the inner wall 14 of the sleeve 13, the other end of the positioning pin 3 cannot be inserted into the positioning hole 4 of the upper upright post 1, so that the upper upright post 1 and the lower upright post 2 are in stable tripping bodies, the height of the upper upright post 1 can be adjusted at will, and at the moment, the height of the upper upright post 1 can be adjusted smoothly without pulling the positioning pin 3, after the regulation is accomplished, the reverse rotation locating pin 3, radial protruding fender ring 5 on locating pin 3 this moment just aligns with second non-circular hole 16 on the internal wall 14 of external member 13 and first non-circular hole 7 on the 2 lateral walls of lower stand, locating pin 3 is under the spring action of pressure spring 6, it is inboard to enter into lower stand 2 automatically, it can make radial protruding fender ring 5 on locating pin 3 keep off on 2 inside walls of lower stand to rotate locating pin 3 again to the settlement angle, can't outwards withdraw from, can guarantee that the 3 other end of locating pin is stable inserts in locating hole 4 on 1 lateral wall of upper stand this moment, realize upper stand 1 and 2 locks of lower stand, through forming bilayer lateral wall structure on one side of external member 13, accommodate pressure spring 6 in the space between the bilayer lateral wall, make pressure spring 6 have sufficient compression space.

A shielding ring cover part 18 with an inverted L-shaped cross section is further formed at the upper end of the sleeve part 13, the longitudinal side wall of the shielding ring cover part 18 is inserted into the gap between the upper upright post 1 and the lower upright post 2, and the transverse side wall of the shielding ring cover part 18 covers the upper end face of the lower upright post 2 and the upper end of the gap between the upper upright post 1 and the lower upright post 2. The upper end of the external member 13 forms shielding of a gap between the lower stand column 2 and the side wall of the upper stand column 1 through the shielding ring cover part 18, a dustproof effect is achieved, the longitudinal side wall of the shielding ring cover part 18 is inserted into the gap between the upper stand column 1 and the lower stand column 2, a guiding effect is achieved, relative shaking caused by the fact that the gap between the upper stand column 1 and the lower stand column 2 is too large is prevented, an end cover is optimally arranged at the lower end of the upper stand column 1, the shielding ring part arranged between the side walls of the upper stand column 1 and the lower stand column 2 and on the external member 13 is clamped through the side wall of the end cover to vertically correspond to each other, no shaking between the upper stand column 1 and the lower stand column 2 is guaranteed, the height can be adjusted by sliding up and down smoothly, the external member 13 and the shielding ring part on the external member are optimally plastic integrated into a whole, the end cover arranged at the lower end of the upper stand column 1 is optimally a plastic cover, and the plastic material has a wear-resistant and self-lubricating effect.

The fixed cover in 2 outsides of lower stand is equipped with the structure of external member 13 and is: at least one positioning clamping groove 19 is arranged on the side wall of the upper end of the lower upright post 2 at intervals, at least one protruding clamping point 20 is fixedly arranged on the side wall of the sleeve 13 at intervals, and the protruding clamping point 20 can be correspondingly clamped in the positioning clamping groove 19 of the lower upright post 2. Protruding stuck point 20 is the back-off column structure that the plane lower extreme is the inclined plane best for the upper end, when external member 13 from stand 2 upper end suit down when target in place, protruding stuck point 20 just blocks in the positioning groove 19 on the 2 upper end lateral walls of stand down, and finally blocks the plane of protruding stuck point 20 upper end by the 19 medial surfaces of the positioning groove on the 2 lateral walls of stand down, realizes external member 13 fixed positioning, and positioning groove 19 on the 2 upper end lateral walls of stand down and protruding stuck point 20 on the 13 lateral walls of external member are best along stand 2 cylinder direction uniform spacing arrangement or symmetrical arrangement down, improve joint strength and stability, protruding stuck point 20 also can be bulb form bump, or structure such as elastic pin, as long as can block with positioning groove 19 on the stand 2 down can, positioning groove 19 on the stand 2 can be groove structure down, also can be the perforation structure, can be square also can be circular for.

Still be equipped with shallow base 21, be formed with on the shallow base 21 along longitudinal separation's upper strata board 22 and lower plywood 23, be formed with on the upper strata board 22 with 2 appearance matchd's of lower stand upper jack 24, be equipped with at least one longitudinal extension's protruding structure 25 in the location on the plywood 23 down, two or more than location protruding structure 25 interval arrangement on plywood 23 down, be formed with on the lower terminal surface of lower stand 2 with shallow base 21 on the protruding structure 25 one-to-one grafting notch 26 of location on the plywood 23 down, protruding structure 25 in the location on the plywood 23 can one-to-one insert locate down in the grafting notch 26 on the stand 2 terminal surface down, still be equipped with at least one on the lower plywood 23 of shallow base 21 and connect perforation 27, connect perforation 27 and protruding structure 25 and be formed with at least one on the terminal surface under the lower stand 2 at the horizontal direction interval arrangement, connect screw hole 28, wear to be equipped with connecting bolt 29 in the connection perforation 27, connecting bolt 29 and the connection screw hole 28 of stand 2 lower extreme, and connecting bolt 29 head backstop on 23 side surface under lower side of lower stand 23. The cross section of the lower upright post 2 can be a circular ring structure, or an elliptical ring structure or a rectangular ring structure, etc., which is inserted into an upper jack 24 of an upper layer plate 22, the outer side wall of the lower upright post 2 is primarily positioned by the upper jack 24, the lower end of the lower upright post 2 is supported on the upper side surface of the lower layer plate 23, and simultaneously, positioning protrusions on the lower layer plate 23 are inserted into socket notches 26 on the lower end surface of the lower upright post 2 in a one-to-one correspondence manner, the lower upright post 2 is positioned again, and the lower upright post 2 and the base are positioned in the circumferential direction, and relative rotation cannot occur between the two, finally, the lower layer plate 23 and the lower end surface of the upright post are connected and fixed by connecting bolts 29, so that the lower upright post 2 and the cart base 21 are fixedly connected, the connecting structure is simple, the connecting strength is high, and the connection is convenient, only one bolt needs to be locked, so that the lower upright post 2 and the cart base 21 are quickly connected and positioned, and the connecting strength is ensured, wherein the lower upright post 2 and the upper upright post 1 can be manufactured by adopting extruded sections, the lower upright post 2 and the universal bolt, the upper cover plate can be installed on the universal frame, and the push cart base can be manufactured by adopting the universal bolt, and the push plate can be conveniently manufactured by fixing holes, and the universal push plate, and the universal push plate can be installed on the push plate, and the push plate.

Claims (10)

1. The utility model provides a remove shallow high quick adjustment mechanism that goes up and down, includes stand (1) and lower stand (2) to the direction of use is the benchmark, it can follow the gliding inserting of vertical straight line and locate down the stand inboard, its characterized in that to go up the stand: the positioning device is characterized by further comprising a positioning pin (3), the positioning pin can be installed on the side wall of the lower upright column in a reciprocating sliding mode along the horizontal direction for setting the distance, one end of the positioning pin extends out of the side wall of the lower upright column to form an operation end, at least two positioning holes (4) are formed in the side wall of the upper upright column and are arranged at intervals along the longitudinal direction, and the other end of the positioning pin can be inserted into any one positioning hole in the side wall of the upper upright column or can exit from the outside of the positioning hole of the upper upright column in a sliding mode.

2. The fast adjustment mechanism for lifting height of mobile cart according to claim 1, characterized in that: the elastic reset piece is arranged and provides elastic reset force towards the inner direction of the lower stand column for the positioning pin, so that the other end of the positioning pin is kept inserted into the positioning hole in the side wall of the upper stand column.

3. The fast adjustment mechanism for lifting height of mobile cart according to claim 2, characterized in that: the locating pin is located and is equipped with a radial protruding fender ring (5) on one section circumference lateral wall of stand inboard down, and elasticity resets and is pressure spring (6), and the locating pin outside is located to the pressure spring cover, and the both ends of the flexible direction of pressure spring elasticity tightly support respectively down on stand inside wall and the radial protruding fender ring terminal surface on the locating pin circumference lateral wall.

4. The mechanism for rapidly adjusting the lifting height of a mobile cart according to claim 3, wherein: the lower column side wall is provided with a first non-circular hole (7), the cross section of a radial convex baffle ring on the circumferential outer side wall of the positioning pin is of a non-circular structure, the other end of the positioning pin and the radial convex baffle ring on the circumferential outer side wall of the positioning pin can be inserted into the inner side of the lower column through the first non-circular hole on the circumferential outer side wall of the lower column, and the radial convex baffle ring on the circumferential outer side wall of the positioning pin can stop on the inner side wall of the lower column after rotating for a set angle around the rotating shaft of the positioning pin.

5. The fast adjustment mechanism for lifting height of mobile cart according to claim 1, 2, 3 or 4, characterized in that: and one end of the positioning pin, which is exposed out of the outer side of the lower upright post, is also fixedly provided with an adjusting handle (8) with an enlarged size, and the adjusting handle is stopped on the surface of the outer side of the lower upright post.

6. The fast adjustment mechanism for lifting height of mobile cart according to claim 5, characterized in that: the utility model discloses a handle of adjusting, including locating pin, regulation handle, second buckle structure, locating pin one end is formed with non-circular spliced pole (9), still is equipped with first buckle structure (10) on this non-circular spliced pole lateral wall, is equipped with non-circular slot (11) on the regulation handle, be equipped with second buckle structure (12) on the non-circular slot inside wall, the non-circular spliced pole circumferencial direction locking that the locating pin was served is inserted and is located the non-circular slot of regulation handle, and first buckle structure is connected with second buckle structure lock and is made locating pin and regulation handle axial locking location.

7. The fast adjustment mechanism for lifting height of mobile cart according to claim 4, characterized in that: the fixed cover that is equipped with external member (13) still in the lower column outside, external member one side is the double-deck lateral wall structure that is formed by inner wall (14) and outer wall (15) parallel interval arrangement, the distance is greater than radial protruding retaining ring axial thickness on the locating pin circumference lateral wall between the inner wall of external member one side and the outer wall, and radial protruding retaining ring on the locating pin circumference lateral wall can the pivoted hold in the clearance between the inner wall of external member one side and the outer wall, and be formed with on the inner wall of external member one side with second non-circular hole (16) that first non-circular hole aligns on the lower column lateral wall, be formed with on the outer wall of external member one side with second non-circular hole just right through hole (17), locating pin one end can the pivoted wear to locate in the through hole, the radial protruding retaining ring of the locating pin other end and its circumference lateral wall of locating pin can insert the lower column inboard through second non-circular hole and first non-circular hole, can stop between external member inner wall after the radial protruding retaining ring rotation of locating pin circumference lateral wall rotates the settlement angle around the locating pin, the locating pin circumference lateral wall can stop between external member inner wall and the outer wall, the both ends of pressure spring flexible direction tightly support on the external member outer wall and the radial protruding retaining ring terminal surface on medial surface on the medial surface of medial surface on the peripheral lateral wall respectively.

8. The fast adjustment mechanism for lifting height of mobile cart according to claim 7, characterized in that: the external member upper end still is formed with cross section for the sheltering from ring lid portion (18) of falling L shape, shelter from in the vertical lateral wall of ring lid portion inserts the clearance of locating between last stand and the lower stand, shelter from the horizontal lateral wall of ring lid portion and cover in the stand up end down and the clearance upper end between last stand and the lower stand.

9. The mechanism for rapidly adjusting the lifting height of a mobile cart according to claim 7 or 8, wherein: the fixed cover in the stand outside is equipped with the structure of external member down and is: at least one positioning clamping groove (19) is arranged on the side wall of the upper end of the lower upright post at intervals, at least one protruding clamping point (20) is fixedly arranged on the side wall of the external member at intervals, and the protruding clamping point can be correspondingly clamped in the positioning clamping groove of the lower upright post.

10. The rapid adjustment mechanism for lifting height of mobile cart according to claim 1, characterized in that: still be equipped with shallow base (21), be formed with on the shallow base along the upper strata board (22) and lower floor plate (23) of longitudinal interval range, be formed with on the upper strata board with lower stand appearance matching upper jack (24), be equipped with at least one longitudinal extension's protruding structure of location (25) on the lower floor plate, two or more than two protruding structures of location interval range on the lower floor plate, be formed with on the lower terminal surface of lower stand with shallow base on the protruding structure one-to-one grafting notch (26) of location on the plywood, the protruding structure of location on the lower floor plate can one-to-one insert locate in the grafting notch on the lower terminal surface of lower stand, still be equipped with at least one connection perforation (27) on the lower floor plate of shallow base, connection perforation and the protruding structure of location are formed with at least one connection screw (28) on the terminal surface under the lower stand at the horizontal direction interval range, wear to be equipped with connecting bolt (29) in the connection perforation, connecting bolt and the bolt head backstop is on the lower side surface.

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