CN2227644Y

CN2227644Y - Falling-proof locking hand shank for hydraulic horizontal jack

Info

Publication number: CN2227644Y
Application number: CN 94239909
Authority: CN
Inventors: 吴盛华
Original assignee: HANGZHOU JACK FACTORY
Current assignee: HANGZHOU JACK FACTORY
Priority date: 1994-12-27
Filing date: 1994-12-27
Publication date: 1996-05-22
Anticipated expiration: 2004-12-27

Abstract

The utility model relates to a falling-proof locking hand shank for a hydraulic horizontal jack, comprising a front segment sleeve barrel and a back segment sleeve barrel, a connecting sleeve barrel, a push rod which is provided with a spring and is arranged in the sleeve barrels, and a square core sleeve which is movably sheathed in the sleeve barrels and is provided with a notch. The push rod is provided with a lateral pin which can be inosculated with the notch, and the other end of the push rod is provided with a handle. The handle can be overhung through the wall of the sleeve barrel, can realize an axial or a circumferential slide along the through hole on the wall of the sleeve barrel, the lateral pin and the notch can be reliably inosculated with the notch, the rigid connection between the sleeve barrels and the square core sleeve can be realized, the oil drain valve can be opened and closed, or the lateral pin is disengaged from the notch, and the sleeve barrels can not open and close the oil drain valve. When the utility model is used, the hydraulic horizontal jack has the advantages of safe work, simple structure, and convenient operation.

Description

The anti-clamp handle that falls of hydraulic horizontal jack

The utility model is a kind of anti-latching device that falls of hydraulic jack.

The structure of existing hydraulic horizontal jack can see that it has handle I, cylinder part III, reciprocating pump core II, crane arm IV, pallet V, roller VI from Fig. 1.Affect handle can make roller, to change the position of jack along ground surface; Rotary handle can drive the lifting of oil cock valve rod by gear cluster VII, and oil cock is opened and closed; Press down handle, make its by position N half-twist to N ' time, it can push the pump core toward the oil cylinder oil-feed, thereby makes crane arm IV upwards hold up pallet V.The structure of handle 1 can see from Fig. 2, it contain prosthomere sleeve 4 '; The band sheath 1 ' deutomerite sleeve 2 '; Adapter shaft 3 with the affixed one of forward and backward joint sleeve '; The square heart cover 5 of a valve rod lifting that is fixed in the driven oil cock on the prosthomere sleeve '.The shortcoming of existing hydraulic horizontal jack handle is: the affixed work to the horizontal jack of hydraulic pressure between square heart cover and the prosthomere sleeve brings hidden danger, because when jack is lifted weight, the unintentional rotation of handle can cause the unlatching of oil cock and causes that weight falls.

The purpose of this utility model is to overcome the shortcoming that exists in the above-mentioned prior art, and a kind of anti-clamp handle that falls of safe and reliable hydraulic horizontal jack is provided.

Hydraulic horizontal jack anti-fall clamp handle include prosthomere sleeve, deutomerite sleeve, be used to make before and after the affixed all-in-one-piece coupling bush of joint sleeve, can drive the square heart cover of oil cock valve rod lifting; Characteristics of the present utility model are: 1) adopt kink to be connected between square heart cover and the prosthomere sleeve, the side's of having heart is with axial direction positioning device on the joint face, and the end that the square heart is enclosed within close prosthomere sleeve has notch; 2) in forward and backward joint sleeve kink a push rod, push rod is at the lateral pin that the notch tabling that an energy and the square heart put has been installed near an end of square heart cover, the end in addition of push rod has handle; 3) having one on the deutomerite sleeve wall can stretch out sleeve outside and can axially or circumferentially do moving or the through hole of rotation of setpoint distance along sleeve for handle for handle; 4) on push rod, have the elasticity reset device that a cover comprises spring, spring perch and fixing screw.

To and contrast accompanying drawing by embodiment below, the utility model will be done further narration.Have in the accompanying drawing:

Fig. 1 is the positive view of existing hydraulic horizontal jack handle;

Fig. 2 is the positive view of hydraulic horizontal jack;

Fig. 3 is the positive view of the utility model handle;

Fig. 4 and Fig. 5 are respectively A-A and the B-B cutaway views among Fig. 2;

Fig. 6 is the plane outspread drawing of the through hole on the deutomerite sleeve wall.

Can see that from Fig. 3-Fig. 5 the utility model handle includes prosthomere sleeve 4, deutomerite sleeve 2, is used to make front and back to save the coupling bush 3 of the band tightening screw 9 of the affixed one of sleeve; Can be with sheath 1 on the deutomerite sleeve, auxiliary sleeve 17 kinks that the prosthomere barrel forward end can be by an one fastening with it square heart cover 5 of band square hole 6 and notch 14, the square heart overlap and auxiliary sleeve between the kink joint face on the back-up ring 18 that axial location is used has been installed; In forward and backward joint sleeve and coupling bush, a push rod 15 has been installed, the front end of push rod has the lateral pin 13 of notch 14 tablings that an energy and the square heart put, and putting back-end has then connected handle 7 by connecting spindle nose 8, and handle stretches out from the through hole 16 on the sleeve wall; Through hole 16 on the deutomerite sleeve also can see from Fig. 4, it can make handle along jacket casing circumferentially turn over an angle [alpha], also can move a distance C vertically.Through hole can be square, shown in Fig. 6 a, also can be inverted T-shape, shown in Fig. 6 b.Can have the packing ring 19 that prevents sideslip on the push rod.Elasticity reset device on the push rod includes spring 12, spring perch 11 and is installed in fixing screw 10 on the prosthomere sleeve.

The aperture that changes oil cock at needs is right, but push-down handle hand 7 makes it by the position A to D among Fig. 3 (the locational handle assembly of D is represented with long and two-short dash line), go to D ' position by expression among Fig. 4 by D again then, handle is stuck in the circumferential duct of through hole 16 reliably, at this moment the lateral pin under the push rod 13 embeds in the notch 14 reliably, sleeve, push rod, square heart cover are fused rigidly, and the rotational force on the handle can the side's of being delivered to heart cover, to drive the lifting of oil cock valve rod; When not needing to change the aperture of oil cock, can first rotary handle, it is returned on the D position by D ' position, push rod is got back to position A by position D under the effect of elasticity reset device, and lateral pin puts disengagement from the square heart.Rotational force on the handle sleeve can only make auxiliary sleeve put idle running and can not overlap rotation by the side's of drive heart at the square heart this moment, and therefore, handle can not play the switch fuel tap at the moment.

The utility model has the advantages that: 1) horizontal hydraulic jack is being praised weight when work, It is upper that handle on the handle is in, so that its sleeve and square heart cover throw off, even therefore hand The unexpected rotation of handle can not cause that also the aperture of fuel outlet valve changes, and handle is logical at sleeve Rotation chucking in the hole is locked at reliably on this axial location push rod, thereby has guaranteed Pallet stops in the operating position, weight can not descend; On the contrary, drain the oil in the needs change During the aperture of valve, can press down handle, handle jacket is integral, really with square heart cover rigid connecting Protect rotatable handle power and can be delivered on the valve rod, with the actuate valve stem lifting. So this practicality is new Type not only keeps the original function of handle, and can also make jack safe and reliable. 2) Simple in structure and the need of the utility model handle open and close or need not open and close two kinds of positions of fuel outlet valve The conversion speed of putting is fast, conversion is convenient.

Claims

1, a kind ofly include the anti-clamp handle that falls of hydraulic horizontal jack that prosthomere sleeve (4), deutomerite sleeve (2), coupling bush (3) and can drive the square heart cover (5) of oil cock valve rod lifting, it is characterized in that:

1) between square heart cover (5) and the prosthomere sleeve (4) for kink is connected, have axial direction positioning device (18) on the joint face, and the square heart puts and has notch (14);

2) in front and back joints sleeve kink a push rod (15), push rod is at the lateral pin (13) that notch (14) tabling that an energy and the square heart put has been installed near an end of square heart cover, the end in addition of push rod has handle (7);

3) having one on the deutomerite sleeve wall can stretch out sleeve outside and can axially or circumferentially make through hole (16) mobile or rotation along sleeve for handle for handle;

4) on push rod, have the elasticity reset device that a cover comprises spring (12), spring perch (11) and fixing screw (10).