CN204414063U - A kind of hand hoist of tool car - Google Patents

Abstract

The utility model relates to a hand-cranked lift for a tool vehicle, which includes a movable pipe assembly, a handle assembly, a screw rod assembly and a fixed pipe assembly; the movable pipe assembly consists of a top plate, a movable pipe, a movable pipe cover, a nut , screws, set above the fixed pipe assembly; the handle assembly is composed of driving gear, right bush, left bush, shaft elastic retaining ring, handle, handle handle, set on the movable pipe assembly; screw rod The assembly is composed of a driven gear, a support plate, a straight pin, a plane bearing, a screw spacer, a screw, and a limit stop ring, and connects the movable pipe assembly and the fixed pipe assembly; the fixed pipe assembly is composed of a screw sleeve, a fixed Composed of tube and base plate. The utility model can achieve effects: compact structure, reliable function, convenient use, the rotating handle can raise and lower the upper platform to the required height, and the screw sleeve and screw rod made of trapezoidal thread have self-locking function, which can ensure the stability and safety of the support. Reliability, to ensure the safety of mechanical maintenance workers, tools and parts.

Description

A hand-operated lift for a tool cart

technical field

The utility model relates to the field of mechanical tools, in particular to a hand-cranked lifter for a tool cart, which is used to rotate a handle by hand to drive a gear and a screw to rotate to realize platform lifting and support during mechanical maintenance.

Background technique

As a supporting platform for placing tools and parts, the tool cart is widely used in various fields of machinery production and maintenance; the upper and lower platforms of the currently used tool cart mainly adopt a four-column fixed mechanism, which uses four columns to hold the upper and lower platforms. The platform is fixedly connected, and the upper and lower platforms are fixed at one position during use. Mechanical maintenance workers cannot adjust the position of the upper platform according to the height and height of the maintenance station, which brings inconvenience to the transmission and placement of tools and parts, and reduces maintenance efficiency. Certain security risks.

Utility model content

In order to solve the above defects and deficiencies, the maintenance workers can adjust the height of the upper platform of the tool cart arbitrarily according to the height of the maintenance station, so as to facilitate the transmission and placement of tools and parts; A hand-cranked lift for a tool cart that realizes the lifting and supporting of the upper platform by the rotation of the screw rod.

The technical solution adopted by the utility model is: a hand-operated lift for a tool cart: comprising a movable pipe assembly, a handle assembly, a screw rod assembly and a fixed pipe assembly. It is characterized in that: the movable pipe assembly is composed of a top plate, a movable pipe, a movable pipe cover, nuts, and screws, and is arranged above the fixed pipe assembly, and is movably matched with the fixed pipe assembly. The top plate, movable pipe, nuts The movable pipe cover is arranged on the movable pipe, and the screw and the nut are screwed together; the handle assembly is composed of a driving gear, a right bush, a left bush, an elastic circlip for the shaft, a handle, The handle consists of a handle, which is arranged on the movable pipe assembly. The left bush and the right bush are arranged on both sides of the movable pipe, the handle is arranged in the left bush and the right bush, and the left end of the handle is provided with a shaft With a circlip, the driving gear is arranged on the handle, and the handle handle is arranged on the handle; , a limit retaining ring, connecting the movable pipe assembly and the fixed pipe assembly, the support plate is arranged on the movable pipe, the upper end of the screw rod is arranged in the hole of the support plate, and is movably matched with the support plate, and the support plate A cylindrical pin and a driven gear are arranged on the upper screw rod, a plane bearing and a screw spacer are arranged on the lower screw rod of the support plate, and a limit retaining ring is arranged at the lower end of the screw rod, which is fixedly connected with the screw rod; The fixed pipe assembly is composed of a screw sleeve, a fixed pipe, and a bottom plate. The fixed pipe is welded to the bottom plate. The outer diameter of the screw sleeve is fixedly connected with the inner hole of the fixed pipe. The fixed pipe is longitudinally provided with a V-shaped guide groove.

A hole is arranged at the place where the movable pipe cover is installed on the movable pipe.

The driving gear and the driven gear are bevel gears.

The driving gear is fixedly connected with the handle.

The inner thread of the screw sleeve and the outer thread of the screw rod are single or multi-start left-handed trapezoidal threads.

The head of the screw cooperates with the guide groove to fix the movable pipe and the fixed pipe from relative rotation.

The utility model can achieve effects: compact structure, reliable function, convenient use, the rotating handle can raise and lower the upper platform to the required height, and the screw sleeve and screw rod made of trapezoidal thread have self-locking function, which can ensure the stability and safety of the support. Reliability, to ensure the safety of mechanical maintenance workers, tools and parts.

Description of drawings

Fig. 1 is a longitudinal sectional view of the utility model;

Fig. 2 is a three-dimensional rendering of the utility model;

The names and marks of each part in the figure: 10-movable pipe assembly, 11-top plate, 12-movable pipe, 13-movable pipe cover, 14-nut, 15-screw, 20-handle assembly, 21-driving gear, 22- Right bushing, 23-left bushing, 24-shaft circlip, 25-handle, 26-handle handle, 30-screw assembly, 31-driven gear, 32-support plate, 33-straight pin, 34-plane bearing, 35-screw pad, 36-screw, 37-limit retaining ring, 40-fixed pipe assembly, 41-screw sleeve, 42-fixed pipe, 43-bottom plate, 44-guide groove.

Detailed ways

As shown in Fig. 1 and Fig. 2, a hand-operated lift for a tool cart includes a movable pipe assembly 10, a handle assembly 20, a screw rod assembly 30, and a fixed pipe assembly 40. It is characterized in that: the movable pipe assembly 10 is composed of a top plate 11, a movable pipe 12, a movable pipe cover 13, a nut 14, and a screw 15, and is arranged above the fixed pipe assembly 40, and is movably matched with the fixed pipe assembly 40, The top plate 11, the movable pipe 12, and the nut 14 are connected by welding, the movable pipe cover 13 is arranged on the movable pipe 12, and the screw 15 is screwed and connected with the nut 14; the handle assembly 20 is composed of a driving gear 21 , the right bush 22, the left bush 23, the shaft circlip 24, the handle 25, and the handle handle 26, which are arranged on the movable pipe assembly 10, and the left bush 23 and the right bush 22 are arranged on the movable pipe 12, the handle 25 is arranged in the left bush 23 and the right bush 22, the left end of the handle 25 is provided with a circlip 24 for the shaft, the driving gear 21 is arranged on the handle 25, and the handle Handle 26 is arranged on handle 25; Described screw mandrel assembly 30 is made up of driven gear 31, support plate 32, cylindrical pin 33, plane bearing 34, screw mandrel spacer 35, screw mandrel 36, limit retaining ring 37, Connect the movable pipe assembly 10 and the fixed pipe assembly 40, the support plate 32 is arranged on the movable pipe 12, the upper end of the screw rod 36 is arranged in the hole of the support plate 32, and is movably matched with the support plate 32, and the support plate A cylindrical pin 33 and a driven gear 31 are arranged on the screw mandrel 36 above 32, a plane bearing 34 and a screw mandrel spacer 35 are arranged on the screw mandrel 36 below the support plate 32, and a limit retaining ring is arranged at the lower end of the screw mandrel 36 37, fixedly connected with the screw rod 36; the fixed tube assembly 40 is composed of a screw sleeve 41, a fixed tube 42, and a bottom plate 43, the fixed tube 42 is welded to the bottom plate 43, and the outer diameter of the screw sleeve 41 is the same 42 is fixedly connected to the inner hole, and the fixed pipe 42 is longitudinally provided with a V-shaped guide groove 44 .

A hole is arranged at the place where the movable pipe cover 13 is installed on the movable pipe 12 .

The driving gear 21 and the driven gear 31 are bevel gears.

The driving gear 21 is fixedly connected with the handle 25 .

The inner thread of the screw sleeve 41 and the outer thread of the screw mandrel 36 are single or multi-start left-handed trapezoidal threads.

The head of the screw 15 cooperates with the guide groove 44 to fix the movable pipe 12 and the fixed pipe 42 from relative rotation.

Operation steps: connect a hand-operated lift for a tool cart: the bottom plate 43 of the fixed pipe assembly 40 is connected with the lower platform with bolts, and the top plate 11 of the movable pipe assembly 10 is connected with the upper platform of the tool cart with bolts; Hold the handle handle 26 and rotate the handle 25 clockwise to drive the driving gear 21, the driven gear 31, and the screw 36 to rotate, and the relative movement between the screw 36 and the screw sleeve 41 drives the upper platform to move upward, otherwise, rotate counterclockwise With handle 25, the upper platform moves downwards; after the upper platform is adjusted to the desired height of the maintenance worker, the maintenance worker can put tools and parts on the upper platform at will, which is convenient for maintenance operations.

Claims (6)

1. A hand-operated lift for a tool cart: comprising a movable pipe assembly (10), a handle assembly (20), a screw rod assembly (30) and a fixed pipe assembly (40); it is characterized in that: Said movable pipe assembly (10) is made up of top plate (11), movable pipe (12), movable pipe cover (13), nut (14), screw (15), is arranged on the top of fixed pipe assembly (40), Movably cooperate with the fixed pipe assembly (40), the top plate (11), the movable pipe (12), and the nut (14) are welded and connected, and the movable pipe cover (13) is arranged on the movable pipe (12), The screw (15) is screwed and connected with the nut (14); the handle assembly (20) is composed of a driving gear (21), a right bush (22), a left bush (23), and a shaft circlip ( 24), a handle (25), and a handle handle (26), which are arranged on the movable pipe assembly (10), and the left bushing (23) and the right bushing (22) are arranged on both sides of the movable pipe (12) , the handle (25) is arranged in the left bush (23) and the right bush (22), the left end of the handle (25) is provided with a circlip (24) for the shaft, and the driving gear (21) It is arranged on the handle (25), and the handle handle (26) is arranged on the handle (25); the screw mandrel assembly (30) is composed of a driven gear (31), a support plate (32), a cylindrical pin (33 ), plane bearings (34), screw pads (35), screw mandrels (36), limit retaining rings (37), and connect the movable tube assembly (10) with the fixed tube assembly (40), the described The support plate (32) is arranged on the movable pipe (12), and the upper end of the screw mandrel (36) is arranged in the hole of the support plate (32), and is movably matched with the support plate (32). A cylindrical pin (33) and a driven gear (31) are arranged on the rod (36), and a plane bearing (34) and a screw pad (35) are arranged on the screw rod (36) below the support plate (32), The lower end of the screw mandrel (36) is provided with a limit stop ring (37), which is fixedly connected with the screw mandrel (36); the fixed pipe assembly (40) consists of a screw sleeve (41), a fixed pipe (42), a base plate ( 43), the fixed pipe (42) is welded to the bottom plate (43), the outer diameter of the screw sleeve (41) is fixedly connected to the inner hole of the fixed pipe (42), and the fixed pipe (42) is longitudinally provided with V type guide groove (44). 2. A hand-operated lift for a tool cart according to claim 1, characterized in that a hole is provided at the place where the movable pipe cover (13) is installed on the movable pipe (12). 3. A hand lift for a tool cart according to claim 1, characterized in that said driving gear (21) and driven gear (31) are bevel gears. 4. A hand lift for a tool cart according to claim 1, characterized in that the driving gear (21) is fixedly connected to the handle (25). 5. A hand-operated lift for a tool cart according to claim 1, characterized in that the inner thread of the screw sleeve (41) and the outer thread of the screw rod (36) are single or multi-start left-handed trapezoidal threads. 6. A hand-operated lift for a tool cart according to claim 1, characterized in that the head of the screw (15) cooperates with the guide groove (44) to fix the movable pipe (12) and the fixed pipe (42 ) without relative rotation.