CN113683004B

CN113683004B - Vertical oil pressure slow-lowering jack

Info

Publication number: CN113683004B
Application number: CN202111027145.7A
Authority: CN
Inventors: 金海东
Original assignee: Haiyan Haiding Auto Parts Technology Co ltd
Current assignee: Haiyan Haiding Auto Parts Technology Co ltd
Priority date: 2021-09-02
Filing date: 2021-09-02
Publication date: 2023-03-10
Anticipated expiration: 2041-09-02
Also published as: CN113683004A

Abstract

The invention discloses a vertical oil pressure slow-falling jack which comprises a hydraulic cylinder, a hydraulic cavity, a cushion block, an assembling hole, a sealing ring, a hydraulic shaft, a supporting table, a first piston block, a hydraulic access pipe, a hydraulic output pipe, a piston hole, a stop block, a second piston block, the piston shaft and an oil pressure slow-falling mechanism, wherein the hydraulic cavity is arranged in the hydraulic cylinder, the cushion block which is integrally formed with the hydraulic cylinder is arranged at the bottom of the hydraulic cavity, the cushion block is of an annular structure, the assembling hole is formed in the top of the hydraulic cylinder, the sealing ring which is fixedly connected with the assembling hole in a sealing mode is arranged on the inner side of the assembling hole, the hydraulic shaft is arranged on the inner side of the assembling hole and is in sliding fit with the sealing ring in a sealing mode, and the supporting table is fixedly arranged at the upper end of the hydraulic shaft.

Description

Vertical oil pressure slow-lowering jack

[ technical field ] A method for producing a semiconductor device

The invention relates to the technical field of jacks, in particular to a vertical oil pressure slow-descending jack.

[ background of the invention ]

The jack is light and small hoisting equipment which takes a rigid jacking piece as a working device and jacks a heavy object in a small stroke through a top bracket or a bottom supporting claw, the jack is mainly used in departments of factories, mines, transportation and the like as vehicle repair and other hoisting, supporting and other works, the structure is light, firm, flexible and reliable, the jack can be carried and operated by one person and is divided into a mechanical jack, a hydraulic jack and the like, the principles are different, the existing jack has the advantages of high descending speed, low safety and poor overall effect when unloading force, in addition, the base of the existing jack cannot adapt to uneven ground, and if the jack is used on the uneven ground, a jack cylinder or eccentric loading is easily caused, so the existing jack is necessarily improved.

[ summary of the invention ]

The invention aims to solve the problems in the prior art and provides a vertical oil pressure slow-descending jack.

In order to achieve the purpose, the invention provides a vertical oil pressure slow-falling jack which comprises a hydraulic cylinder, a hydraulic cavity, a cushion block, an assembling hole, a sealing ring, a hydraulic shaft, a supporting table, a first piston block, a hydraulic connecting pipe, a hydraulic output pipe, a piston hole, a stop block, a second piston block, a piston shaft and an oil pressure slow-falling mechanism, wherein the hydraulic cavity is arranged inside the hydraulic cylinder, the cushion block integrally formed with the hydraulic cylinder is arranged at the bottom of the hydraulic cavity, the cushion block is of an annular structure, the assembling hole is formed in the top of the hydraulic cylinder, the sealing ring fixedly connected with the assembling hole in a sealing manner is arranged on the inner side of the assembling hole, the hydraulic shaft is arranged on the inner side of the assembling hole and is in sealing sliding fit with the sealing ring, the supporting table is fixedly arranged at the upper end of the hydraulic shaft, the first piston block is fixedly arranged at the lower end of the hydraulic shaft, and the first piston block is in sealing sliding fit with the hydraulic cavity, the fixed communicating hydraulic pressure of inside wall that is equipped with the cushion of lower side portion of pneumatic cylinder inserts the pipe, the fixed communicating hydraulic pressure output tube with the hydraulic pressure chamber that is equipped with of upper side portion of pneumatic cylinder, a plurality of evenly distributed's piston hole has been seted up to the inside wall of cushion, the piston hole is located the top that hydraulic pressure inserted the pipe, the piston hole communicates with each other with the outside portion of pneumatic cylinder, every the inboard at the both ends of piston hole all is fixed and is equipped with annular dog, every the inboard of piston hole all is equipped with the second piston piece with the sealed sliding fit of piston hole, every one side that the second piston piece deviates from the hydraulic pressure chamber all is fixed and is equipped with the piston shaft, the inboard at the dog is worn to establish by the piston shaft slidable, the fixed oil pressure that is equipped with in outside portion of pneumatic cylinder slowly falls the mechanism, the oil pressure slowly falls the outer end of mechanism and piston shaft and is articulated mutually.

Preferably, the bottom of the hydraulic cylinder is fixedly provided with a base, the upper portion of the base is uniformly provided with a plurality of mounting holes which vertically penetrate through the base, each mounting hole is internally provided with a support leg in a sliding manner, the center position of the upper end of each support leg is provided with a vertically arranged screw hole, each screw hole is internally provided with a screw rod in a threaded connection manner, a lug is arranged right above each mounting hole on the upper portion of the base, the side portion of each lug is rotatably connected with the corresponding mounting hole, the bottom of each lug is fixedly connected with the upper end of each screw rod, and anti-slip threads are arranged on the bottom of the base.

Preferably, the top of the support platform is provided with a plurality of anti-skid grooves.

As preferred, the fixed base that is equipped with in bottom of pneumatic cylinder, the oil pressure slowly falls the mechanism and includes external screw thread sleeve, internal thread sleeve, collar, depression bar, spout and slider, the fixed outside portion of establishing at the pneumatic cylinder of external screw thread sleeve, the telescopic outside portion threaded connection of external screw thread has the internal thread sleeve, the rotatable annular collar that is equipped with of internal thread telescopic lower extreme, the outside portion that is located the telescopic below of external screw thread of pneumatic cylinder articulates there are a plurality of evenly distributed's depression bar, every the spout that extends along the length direction of depression bar is all seted up towards one side of pneumatic cylinder to the depression bar, every all slidable is equipped with the slider in the spout, the outer end of piston shaft is articulated mutually with the slider.

Preferably, a plurality of vertical mounting grooves that set up are evenly seted up to the telescopic outside portion of internal thread, every the inboard of the upper end of mounting groove all articulates there is the handle, every the lateral part of handle all inlays and is equipped with the magnet piece that can supply the absorption mounting groove.

Preferably, the cross section of the mounting hole and the cross section of the supporting foot are both square.

The invention has the beneficial effects that: the invention can prevent skid by arranging the skid-proof groove on the top of the supporting platform, can also prevent a vacuum connection surface between the supporting platform and an object from being damaged when the supporting platform is separated from the object, can prevent the object from being pulled when the supporting platform is separated from the object, can prevent the object from being damaged when the supporting platform is separated from the object by fixedly arranging the oil pressure slow-falling mechanism on the outer side part of the hydraulic cylinder, can ensure that the internal thread sleeve is screwed upwards outside the external thread sleeve by rotating the internal thread sleeve, ensures that the mounting ring at the lower end of the internal thread sleeve is separated from the pressure rod by connecting the thread of the external thread sleeve with the internal thread sleeve, can ensure that the hydraulic oil in the hydraulic cavity extrudes the second piston block, can slide towards the outer end of the piston hole, can ensure that the oil pressure in the hydraulic cavity is slowly reduced, and realize the slow unloading force of the jack, the hydraulic shaft is prevented from being too fast in descending speed and causing danger, the base is arranged at the bottom of the hydraulic cylinder, a plurality of mounting holes which longitudinally penetrate through the base are evenly formed in the upper portion of the base, each mounting hole is internally provided with a support leg and a screw hole which is vertically formed in the central position of the upper end of each support leg, each screw hole is internally provided with a screw rod in a threaded connection mode, a lug is arranged right above each mounting hole in the upper portion of the base, the side portion of each lug is rotatably connected with the corresponding mounting hole, the bottom of each lug is fixedly connected with the upper end of each screw rod, and when the ground is not level, the lug can be rotated to drive the support legs to stretch out from the lower ends of the mounting holes, so that the jack can be quickly leveled on the uneven ground. Compared with the prior art, can slowly reduce the oil pressure of jack, prevent that the jack from unloading the power fast and taking place danger, prevent effectively that a supporting bench from adsorbing with the object mutually, can adapt to not flat ground, simple structure, facilitate promotion and application.

The features and advantages of the present invention will be described in detail by embodiments in conjunction with the accompanying drawings.

[ description of the drawings ]

Fig. 1 is a sectional view of a vertical hydraulic slow-lowering jack according to the present invention.

In the figure: 1-hydraulic cylinder, 2-hydraulic cavity, 3-cushion block, 4-assembly hole, 5-sealing ring, 6-hydraulic shaft, 7-support table, 8-first piston block, 9-hydraulic access pipe, 10-hydraulic output pipe, 11-piston hole, 12-stop block, 13-second piston block, 14-piston shaft, 15-oil pressure descent control mechanism, 151-external thread sleeve, 152-internal thread sleeve, 1521-mounting groove, 1522-handle, 153-mounting ring, 154-pressure rod, 155-sliding groove, 156-sliding block, 16-base, 161-mounting hole, 162-support foot, 163-screw hole, 164-screw rod and 165-lug.

[ detailed description ] embodiments

Referring to fig. 1, the vertical oil pressure slow descending jack of the present invention comprises a hydraulic cylinder 1, a hydraulic chamber 2, a pad 3, an assembly hole 4, a seal ring 5, a hydraulic shaft 6, a support table 7, a first piston block 8, a hydraulic access pipe 9, a hydraulic output pipe 10, a piston hole 11, a stop block 12, a second piston block 13, a piston shaft 14 and an oil pressure slow descending mechanism 15, wherein the hydraulic chamber 2 is arranged inside the hydraulic cylinder 1, the bottom of the hydraulic chamber 2 is provided with the pad 3 integrally formed with the hydraulic cylinder 1, the pad 3 is of an annular structure, the top of the hydraulic cylinder 1 is provided with the assembly hole 4, the inner side of the assembly hole 4 is provided with the seal ring 5 hermetically and fixedly connected with the assembly hole 4, the inner side of the assembly hole 4 is provided with the hydraulic shaft 6, the hydraulic shaft 6 is in sealed and sliding fit with the seal ring 5, the upper end of the hydraulic shaft 6 is fixedly provided with the support table 7, the lower end of the hydraulic shaft 6 is fixedly provided with the first piston block 8, the first piston block 8 is in sealed and sliding fit with the hydraulic chamber 2, the lower side of the hydraulic chamber 1 is fixedly provided with the piston hole 9 communicated with the piston hole 9, the piston hole 11 is fixedly provided with the inner side of the piston hole 14, the piston hole 13, the piston hole which is fixedly communicated with the piston hole 13, the piston hole is fixedly communicated with the piston hole, the piston hole 11, the piston hole 13, the piston hole is provided with the piston hole 14, the piston hole 13, the piston hole is fixedly communicated with the piston hole 13, the piston hole is uniformly communicated with the piston hole 14, the piston hole is provided with the piston hole 14, the outer side of the hydraulic cylinder 1 is fixedly provided with an oil pressure slow descending mechanism 15, the oil pressure slow descending mechanism 15 is hinged to the outer end of the piston shaft 14, the bottom of the hydraulic cylinder 1 is fixedly provided with a base 16, the upper portion of the base 16 is uniformly provided with a plurality of mounting holes 161 which vertically penetrate through the base 16, each mounting hole 161 is internally provided with a support leg 162 in a sliding manner, the center position of the upper end of each support leg 162 is provided with a vertically arranged screw hole 163, each screw hole 163 is internally provided with a screw 164 in a threaded connection manner, the upper portion of the base 16 is arranged right above each mounting hole 161 and is provided with a convex block 165, the side portion of each convex block 165 is rotatably connected with the mounting hole 161, the bottom of each convex block 165 is fixedly connected with the upper end of the screw hole 164, the bottom of the base 16 is provided with anti-skid threads, and the top of the support table 7 is provided with a plurality of anti-skid grooves, the oil pressure slow-lowering mechanism 15 comprises an external thread sleeve 151, an internal thread sleeve 152, a mounting ring 153, a pressing rod 154, a sliding groove 155 and a sliding block 156, the external thread sleeve 151 is fixedly sleeved at the outer side of the hydraulic cylinder 1, the outer side of the external thread sleeve 151 is in threaded connection with the internal thread sleeve 152, the lower end of the internal thread sleeve 152 is rotatably provided with the annular mounting ring 153, the outer side of the hydraulic cylinder 1 is positioned below the external thread sleeve 151 and is hinged with a plurality of uniformly distributed pressing rods 154, one side of each pressing rod 154, facing the hydraulic cylinder 1, is provided with the sliding groove 155 extending along the length direction of the pressing rod 154, the sliding block 156 is slidably arranged in each sliding groove 155, the outer end of the piston shaft 14 is hinged with the sliding block 156, the outer side of the internal thread sleeve 152 is uniformly provided with a plurality of vertically arranged mounting grooves 1521, and the inner side of the upper end of each mounting groove 1 is hinged with a handle 1522, a magnet block for adsorbing the installation groove 1521 is embedded in the side of each handle 1522, and the cross sections of the installation holes 161 and the support legs 162 are square.

The working process of the invention is as follows: when the jack is used, the extending length of the lower end of the supporting leg 162 is adjusted according to the flatness of the ground, the protruding block 165 is rotated to drive the screw 164 to rotate, the screw 164 is in threaded connection with the screw hole 163, and the supporting leg 162 is in axial sliding fit with the mounting hole 161, so that the screw 164 rotates to drive the supporting leg 162 to extend out from the lower end of the mounting hole 161, so that the supporting leg 162 can be used for leveling, the base 16 is always in a horizontal state, then the hydraulic input pipe 9 and the hydraulic output pipe 10 are respectively connected with a hydraulic system, hydraulic oil is pressed into the hydraulic cavity 2 through the hydraulic input pipe 9, hydraulic oil pushes the hydraulic shaft 6 to lift up through the first piston block 8 to jack an object, when the jack needs to slowly release force, the handle 1522 can be rotated from the mounting groove 1 to enable the handle 1521 to be perpendicular to the outer side portion of the internal threaded sleeve 152, then the handle 1522 is rotated counterclockwise by rotating the internal threaded sleeve 152, the internal threaded sleeve 152 is screwed in the internal threaded sleeve 151, so that the pressure of the mounting ring 152154 at the lower end of the internal threaded sleeve 152 gradually decreases the pressure of the hydraulic shaft 14, and the piston 2 slowly decreases the pressure of the hydraulic rod 13 slowly decreases the piston shaft. Compared with the prior art, can slowly reduce the oil pressure of jack, prevent that the jack from unloading the power fast and taking place danger, prevent effectively that a supporting bench from adsorbing with the object mutually, can adapt to uneven ground, simple structure, facilitate promotion and application.

The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.

Claims

1. The utility model provides a vertical oil pressure jack that slowly falls which characterized in that: comprises a hydraulic cylinder (1), a hydraulic cavity (2), a cushion block (3), an assembly hole (4), a sealing ring (5), a hydraulic shaft (6), a support table (7), a first piston block (8), a hydraulic access pipe (9), a hydraulic output pipe (10), a piston hole (11), a stop block (12), a second piston block (13), a piston shaft (14) and an oil pressure slow-falling mechanism (15), wherein the hydraulic cavity (2) is arranged inside the hydraulic cylinder (1), the cushion block (3) which is integrally formed with the hydraulic cylinder (1) is arranged at the bottom of the hydraulic cavity (2), the cushion block (3) is of an annular structure, the assembly hole (4) is formed at the top of the hydraulic cylinder (1), the sealing ring (5) which is fixedly connected with the assembly hole (4) in a sealing way is arranged on the inner side of the assembly hole (4), the hydraulic shaft (6) is in a sealing way and sliding fit with the sealing ring (5), the support table (7) is fixedly arranged at the upper end of the hydraulic shaft (6), the first piston block (8) is fixedly arranged at the lower end of the hydraulic shaft (6), the first piston block (8) is communicated with the hydraulic cylinder (1) and the hydraulic cylinder (9), the fixed hydraulic pressure output tube (10) that is equipped with and communicates with each other with hydraulic pressure chamber (2) of upside portion of pneumatic cylinder (1), a plurality of evenly distributed's piston hole (11) have been seted up to the inside wall of cushion (3), piston hole (11) are located the top that hydraulic pressure inserts pipe (9), piston hole (11) communicate with each other with the outside portion of pneumatic cylinder (1), every the inboard at the both ends of piston hole (11) all is fixed and is equipped with annular dog (12), every the inboard of piston hole (11) all is equipped with piston hole (11) sealed sliding fit's second piston piece (13), every one side that second piston piece (13) deviate from hydraulic pressure chamber (2) all is fixed and is equipped with piston shaft (14), piston shaft (14) slidable wears to establish the inboard at dog (12), the outside portion of pneumatic cylinder (1) is fixed and is equipped with oil pressure and slowly falls mechanism (15), oil pressure slowly falls mechanism (15) and the outer end of piston shaft (14) and articulates mutually.

2. A vertical slow hydraulic jack as claimed in claim 1, wherein: the fixed base (16) that is equipped with in bottom of pneumatic cylinder (1), a plurality of mounting holes (161) that vertically run through base (16) are evenly seted up on the upper portion of base (16), every all slidable is equipped with stabilizer blade (162) in mounting hole (161), every screw (163) of vertical setting are seted up to the central point of the upper end of stabilizer blade (162), every equal threaded connection has screw rod (164) in screw (163), the upper portion of base (16) is located and all is equipped with lug (165) directly over every mounting hole (161), the lateral part and the mounting hole (161) of lug (165) rotate to be connected, the bottom of lug (165) and the upper end fixed connection of screw rod (164), the bottom of base (16) is equipped with anti-skidding line.

3. The vertical hydraulic slow-descending jack according to claim 1, wherein: the top of the supporting platform (7) is provided with a plurality of anti-skidding grooves.

4. A vertical slow hydraulic jack as claimed in claim 1, wherein: oil pressure slow-falling mechanism (15) include external screw thread sleeve (151), internal thread sleeve (152), collar (153), depression bar (154), spout (155) and slider (156), the fixed cover of external screw thread sleeve (151) is established at the outside portion of pneumatic cylinder (1), the outside portion threaded connection of external screw thread sleeve (151) has internal thread sleeve (152), the rotatable annular collar (153) that is equipped with of lower extreme of internal screw thread sleeve (152), the outside portion that is located external screw thread sleeve (151) of pneumatic cylinder (1) hinges the depression bar (154) that has a plurality of evenly distributed in the below, every depression bar (154) are all seted up spout (155) that extend along the length direction of depression bar (154) towards one side of pneumatic cylinder (1), every all can slide in spout (155) and be equipped with slider (156), the outer end and slider (156) of piston shaft (14) are articulated mutually.

5. The vertical hydraulic slow-descending jack according to claim 4, wherein: the outside portion of internal thread sleeve (152) evenly sets up mounting groove (1521) of a plurality of vertical settings, every the inboard of the upper end of mounting groove (1521) all articulates there is handle (1522), every the magnet piece that can supply adsorption mounting groove (1521) is all inlayed to the lateral part of handle (1522).

6. The vertical hydraulic slow-descending jack according to claim 2, wherein: the cross sections of the mounting holes (161) and the supporting feet (162) are square.