CN201232736Y

CN201232736Y - Telescopic push rod apparatus

Info

Publication number: CN201232736Y
Application number: CNU2008201621146U
Authority: CN
Inventors: 陈日春
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-08-01
Filing date: 2008-08-01
Publication date: 2009-05-06
Anticipated expiration: 2018-08-01

Abstract

The utility model relates to a telescopic pin-lift arrangement which comprises a pipe sleeve and a pin-lift arranged on the pipe sleeve. The utility model is characterized in that the inner wall of the upper end of the pipe sleeve is provided with longitudinal grooves; a C-shaped liner bushing is arranged between the pin-lift and the pipe sleeve; the inner wall of the liner bushing is made into a tip surface, and the edges of the tip surface are provided with a pair of clamp posts matched with the longitudinal grooves of the inner wall of the pipe sleeve; the position of the pin-lift, which is near the upper end, is made into a tip surface post engaged with the tip surface of the inner wall of the liner bushing; the top surface of the pin-lift is provided with crossed grooves or an l-shaped groove used for being screwed by a screwdriver; screw thread grooves are arranged on the inner wall of the lower end of the pipe sleeve, and the position of the pin-lift, which is near the middle, is provided with screw threads matched with the screw thread grooves. The pin-lift and the pipe sleeve are connected through the screw threads, and the length of the pin-lift arrangement can be regulated through screwing the pin-lift. The liner bushing of the clamp post is arranged between the pin-lift arrangement and the pipe sleeve, so the length of the pin-lift arrangement is prevented from being changed in a certain range through the automatic rotation of the pin-lift through being driven by external force. The utility model also has the characteristics of simple structure, low cost, practicability, and the like.

Description

Telescopic pin-lift arrangement

Technical field the utility model relates to push rod, relates in particular to telescopic pin-lift arrangement.

Background technique

The push rod function singleness of prior art, Applicable scope is wideless, as China Patent No. is 200520139947.7 to disclose a kind of minute body structure off-load pin-lift arrangement, this device is by the off-load push rod, pin, shaft sealing, screw axis and torsion bar are formed, torsion bar is fixedlyed connected by pin with the screw axis section of matching, such structure makes the length of pin-lift arrangement fix, Applicable scope is narrow, discharging valve such as flush toilet needs to open with the push rod of manual or motorized motions, the ceramic bowl of different model needs the pin-lift arrangement of different size, even same model, also can there be size error, uses the pin-lift arrangement of fixed length to cause discharging valve not open or open not exclusively.

Summary of the invention

The purpose of this utility model provides a kind of telescopic pin-lift arrangement, has solved the shortcoming that existing pin-lift arrangement length can not be regulated.

The technological scheme that the utility model adopted is to achieve the above object of the invention: a kind of telescopic pin-lift arrangement, form by push rod and pipe box, and it is characterized in that push rod and pipe box screw-thread fit, be provided with the rotation preventive mechanism of push rod between the two.

The structure of described rotation preventive mechanism is: c-shaped lining inwall is made tip surface, and its outer wall is shaped on a pair of card post, and push rod upper end is shaped on the tip surface post with the tip surface engagement of lining inwall, and the inwall of pipe box upper end is shaped on structure and blocks the pod that post cooperates.

Described tip surface is the vertical rib structure of cambered surface.

Described lining is made of plastics.

The described fixture block end face of going up is shaped on the cross recess or the straight groove of twisting for screw-driver.

The axis hole of described pipe box lower end is shaped on internal thread, is shaped on the outside thread with screw-internal thread fit on the shaft of push rod.

Be thread connecting mode between push rod of the present utility model and the pipe box, twist the length of push rod with regard to the can regulate pin-lift arrangement; Between push rod and pipe box, be provided with the lining that is shaped on the card post, can prevent that in certain scope push rod is rotated and the length of change pin-lift arrangement by external force automatically; The utility model also has characteristics such as simple in structure, that cost is low, and is very practical.

Description of drawings

Fig. 1 is a structural representation of the present utility model

Fig. 2 is the sectional view of pipe box among Fig. 1

Fig. 3 is the structural representation of push rod among Fig. 1

Fig. 4 is a plan view of the present utility model

Fig. 5 is the structural representation of lining among Fig. 1

Among the figure: 1, push rod 11, outside thread 12, tip surface post 13, cross recess

14, go up fixture block 15, following fixture block 16, bar head 2, lining

21, tip surface 22, card post 3, pipe box 31, internal thread

32, pod 33, Kato

Embodiment

As shown in Figure 1, the utility model is made up of push rod 1, lining 2 and pipe box 3 three parts.

As shown in Figure 2, pipe box 3 is one-body molded by two plastic tubes that are similar to cylindrical-shaped structure, and the top of pipe box 3 inwalls is shaped on two pods 32, and internal thread 31 structures are made in the bottom, be shaped on Kato 33 at pipe box 3 outer walls near apical position, be used for touching with the card of other force application part or device.

As shown in Figure 3, push rod 1 is similar to rod shaped structure, be shaped on the outside thread 11 that cooperates with internal thread 31 on the shaft of push rod 1, make tip surface post 12 structures between the upper and

lower fixture block

14,15 of push rod 1 upper end, the end face of last fixture block 14 is shaped on the cross recess 13 or the straight groove of twisting for screw-driver.

As shown in Figure 5, lining 2 is a C shape plastic hoop, and its both sides are shaped on the card post 22 that cooperates with the pod 32 of pipe box 3 inwalls, and the inwall of lining 2 is made tip surface 21 structures of the vertical rib of cambered surface, and tip surface 21 meshes with the tip surface post 12 of push rod 1 upper end; When lining 2 is enclosed within the tip surface post 12 of push rod 1, the upper and lower fixture block of push rod 1 will prevent effectively that lining 2 breaks away from original positions.

With reference to Fig. 1, Fig. 4, during assembling lining 2 is enclosed within on the tip surface post 12 of push rod 1, and allow the card post 22 of lining 2 and the pod 32 of pipe box 3 with screw-driver they are screwed into pipe box 3 over against the back, in use can twist the length that push rod 1 is regulated whole pin-lift arrangement by screw-driver, so that the bar head 16 of push rod 1 contacts with the corresponding part (as the discharging valve of flush toilet) of institute's connection set, the adjusting change scope of pin-lift arrangement length is O～H.Above-mentioned structure can guarantee that push rod 1 can not rotate and keeps the length stability of pin-lift arrangement in the scope that is subjected to certain external force size.

Part working principle of the present utility model: the thread matching structure of push rod 1 and pipe box 3, can realize the length-adjustable that push rod stretches out; Tip surface 21 is made the cambered surface prismatic, because lining 2 is made of plastics, but has certain hole enlargement characteristic, slides producing between the tip surface under certain external force effect, and push rod 1 just can rotate and realizes length adjustment relative to static lining 2; Lining 2 is made C shape bending: utilize resiliently deformable when being installed on the push rod 1 and can firmly snap in.

Claims

1, a kind of telescopic pin-lift arrangement is made up of push rod (1) and pipe box (3), it is characterized in that push rod (1) and pipe box (3) screw-thread fit, is provided with the rotation preventive mechanism of push rod (1) between the two.

2, telescopic pin-lift arrangement according to claim 1, the structure that it is characterized in that described rotation preventive mechanism is: c-shaped lining (2) inwall is made tip surface (21), its outer wall is shaped on a pair of card post (22), push rod (1) upper end is shaped on the tip surface post (12) with tip surface (21) engagement of lining (2) inwall, and the inwall of pipe box (3) upper end is shaped on structure and blocks the pod (32) that post (22) cooperates.

3, telescopic pin-lift arrangement according to claim 2 is characterized in that tip surface (21) is the vertical rib structure of cambered surface.

4, telescopic pin-lift arrangement according to claim 2 is characterized in that lining (2) is made of plastics.

5, telescopic pin-lift arrangement according to claim 2 is characterized in that fixture block (14) end face is shaped on the cross recess (13) or the straight groove of twisting for screw-driver.

6, telescopic pin-lift arrangement according to claim 1 is characterized in that the axis hole of pipe box (3) lower end is shaped on internal thread (31), is shaped on the outside thread (11) that cooperates with internal thread (31) on the shaft of push rod (1).