CN210948713U

CN210948713U - Telescopic lead screw device of tunnel trolley

Info

Publication number: CN210948713U
Application number: CN201922075340.1U
Authority: CN
Inventors: 徐寅轩
Original assignee: Nantong Ye Shun Machinery Manufacturing Co ltd
Current assignee: Nantong Ye Shun Machinery Manufacturing Co ltd
Priority date: 2019-11-27
Filing date: 2019-11-27
Publication date: 2020-07-07
Anticipated expiration: 2029-11-27

Abstract

The utility model discloses a flexible lead screw device of tunnel platform truck relates to tunnel construction equipment technical field, can not the problem of automatically regulated support length to the lead screw that has been used for supporting the template now, proposes following scheme as follows, and it includes flexible lead screw, platform truck frame and template, flexible lead screw includes mobile jib and auxiliary rod, just auxiliary rod slidable mounting is in the inside of mobile jib, the auxiliary rod surface is close to the one end department that is located the mobile jib inside and has seted up the fixture block groove, just the fixture block groove runs through in the both sides of auxiliary rod. The utility model discloses novel structure, and the device not only can extend automatically and support the template, and avoided telescopic screw to contract at the support in-process because the pressure of template, the thrust that the auxiliary rod received in the support process is adjusted to the position that the elasticity regulating block was adjusted to the accessible simultaneously to also can avoid the spring can't provide sufficient elastic thrust's problem, suitable popularization after taking place certain permanent deformation.

Description

Telescopic lead screw device of tunnel trolley

Technical Field

The utility model relates to a tunnel construction equipment technical field especially relates to a flexible lead screw device of tunnel platform truck.

Background

Need carry out the secondary lining construction to the inner wall of tunnel in tunnel construction technical field, it is essential link to use the lead screw to support the template in the work progress, makes the template unlikely to collapse at the secondary lining in-process like this.

At present, the commonly used lead screw adopts the mode of manual hand twisting to fix the support template, so the time and the labor cost of construction are undoubtedly increased, and the operation is also inconvenient, so, in order to solve such problems, we provide a telescopic lead screw device of tunnel trolley.

SUMMERY OF THE UTILITY MODEL

The utility model provides a pair of tunnel trolley's flexible lead screw device has solved the problem that current lead screw that is used for supporting the template can not automatically regulated support length.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a telescopic lead screw device of a tunnel trolley comprises a telescopic lead screw, a trolley frame and a template, wherein the telescopic lead screw comprises a main rod and an auxiliary rod, the auxiliary rod is slidably mounted inside the main rod, a clamping block groove is formed in the surface of the auxiliary rod, which is close to one end inside the main rod, and penetrates through two sides of the auxiliary rod, symmetrically-distributed limiting blocks are slidably mounted inside the clamping block groove, a limiting spring is fixedly mounted on one side face, close to the limiting blocks, of the main rod, an elastic adjusting block is slidably mounted inside the main rod, a positioning hole is formed in one end, far away from the auxiliary rod, of the elastic adjusting block, a bolt is slidably mounted inside the positioning hole, uniformly-distributed bolt holes are formed in the inner wall of one side of the main rod, the bolt holes are matched with the bolt, and an adjusting spring is fixedly mounted on the side face, close to the auxiliary rod, evenly distributed's spacing groove is all seted up to the both sides face of mobile jib, just spacing groove and stopper match each other, the mobile jib is kept away from a side of bolt hole and is seted up the spout that sets up along its length direction, the spout runs through the inner wall of mobile jib, just the bolt runs through the inside of spout.

Preferably, two the side that the stopper is close to each other all fixed mounting have the anticreep piece.

Preferably, the interior of the main rod is uniformly coated with a lubricant.

Preferably, the one end that mobile jib and vice pole kept away from each other all articulates there is the fagging, just the surface of fagging is the curved surface setting.

Preferably, the telescopic screw rod is slidably mounted between the trolley frame and the template.

The utility model has the advantages that:

1. through in the bolt hole that corresponds the bolt screw in, thereby it is fixed with the mobile jib to make the auxiliary rod remove towards the direction of keeping away from the elasticity regulating block under adjusting spring's elasticity effect, through at fixture block inslot slidable mounting stopper, make the stopper insert the spacing inslot that corresponds under spacing elastic effect, make flexible lead screw can only extend and can not contract, thereby make the device can extend automatically and support the template, and avoided flexible lead screw to contract because the pressure of template in the support process.

2. The bolt holes are uniformly distributed at the bottom of the main rod, so that the position of the elastic adjusting block can be adjusted by screwing the bolts into different bolt holes, the thrust of the auxiliary rod in the supporting process can be adjusted by adjusting the position of the elastic adjusting block, and the problem that the spring cannot provide enough elastic thrust after certain permanent deformation can be avoided.

In conclusion, the device not only can automatically extend to abut against the template, but also avoids the contraction of the telescopic screw rod due to the pressure of the template in the supporting process, simultaneously can adjust the thrust force applied to the auxiliary rod in the supporting process by adjusting the position of the elastic adjusting block, and can also avoid the problem that the spring cannot provide enough elastic thrust force after certain permanent deformation, and is suitable for popularization.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a structural sectional view of the present invention.

Fig. 3 is an enlarged view of a in fig. 2 according to the present invention.

Fig. 4 is a schematic view of the installation structure of the telescopic screw rod of the present invention.

Reference numbers in the figures: the device comprises a main rod 1, an auxiliary rod 2, a supporting plate 3, a clamping block groove 4, a limiting block 5, a limiting spring 6, a limiting groove 7, a bolt hole 8, an elastic adjusting block 9, an adjusting spring 10, a bolt 11, a sliding groove 12, a template 13, a trolley frame 14 and a telescopic lead screw 15.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-4, a telescopic lead screw device of a tunnel trolley comprises a telescopic lead screw 15, a trolley frame 14 and a template 13, wherein the telescopic lead screw 15 comprises a main rod 1 and an auxiliary rod 2, the auxiliary rod 2 is slidably mounted inside the main rod 1, a clamping block groove 4 is formed in one end, close to the inside of the main rod 1, of the surface of the auxiliary rod 2, the clamping block groove 4 penetrates through two sides of the auxiliary rod 2, symmetrically-distributed limiting blocks 5 are slidably mounted inside the clamping block groove 4, a limiting spring 6 is fixedly mounted on one side face, close to each other, of each limiting block 5, an elastic adjusting block 9 is slidably mounted inside the main rod 1, a positioning hole is formed in one end, far away from the auxiliary rod 2, of each elastic adjusting block 9, a bolt 11 is slidably mounted inside the positioning hole, bolt holes 8 are uniformly distributed in one side wall of the main rod 1, and the bolt holes 8 are matched with the bolts 11, a side fixed mounting that elasticity regulating block 9 and auxiliary rod 2 are close to each other has adjusting spring 10, evenly distributed's spacing groove 7 is all seted up to mobile jib 1's both sides face, just spacing groove 7 matches each other with stopper 5, the spout 12 that sets up along its length direction is seted up to mobile jib 1 side of keeping away from bolt hole 8, spout 12 runs through the inner wall of mobile jib 1, just bolt 11 runs through the inside of spout 12, two the equal fixed mounting in a side that stopper 5 is close to each other has the anticreep piece, the even coating in inside of mobile jib 1 has emollient, the one end that mobile jib 1 and auxiliary rod 2 kept away from each other all articulates there is fagging 3, just the surface of fagging 3 is the curved surface setting, 15 slidable mounting of flexible lead screw is between bogie frame 14 and template 13.

The working principle is as follows: before the device is used, firstly, the elastic adjusting block 9 slides, when the elastic adjusting block 9 reaches a proper position, the bolt 11 is rotated, the bolt 11 is screwed into the corresponding bolt hole 8, and therefore the elastic adjusting block 9 and the main rod 1 are fixed; when the device is used, firstly, the telescopic screw rod 15 is arranged between the trolley frame 14 and the template 13, then the two ends of the telescopic screw rod 15 are slid, the telescopic screw rod 15 is slid to a position to be supported, when the distance between the position to be supported of the template 13 and the trolley frame 14 is increased, the adjusting spring 10 pushes the auxiliary rod 2 to move towards the direction far away from the elastic adjusting block 9 under the action of the elasticity of the adjusting spring 10, so that the telescopic screw rod 15 is extended to abut against the template 13, meanwhile, the two symmetrically distributed limiting blocks 5 are far away from each other under the action of the limiting spring 6 and are inserted into the corresponding limiting grooves 7, meanwhile, the limiting blocks 5 are arranged in a wedge shape, so that the auxiliary rod 2 can only move towards the direction far away from the elastic adjusting block 9 and cannot move in the reverse direction, the auxiliary rod can firmly abut against the template 13 to collapse of the template 13, when the template does not need to be, make elasticity regulating block 9 and mobile jib 1 be in sliding state, press two stopper 5 after that for stopper 5 removes to the direction that is close to each other, when two stopper 5 all left spacing groove 7, can promote vice pole 2 and remove towards the inside of mobile jib 1, thereby shrink telescopic screw 15.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a flexible lead screw device of tunnel platform truck, includes flexible lead screw (15), platform truck frame (14) and template (13), its characterized in that, flexible lead screw (15) include mobile jib (1) and auxiliary rod (2), just auxiliary rod (2) slidable mounting is in the inside of mobile jib (1), auxiliary rod (2) surface is close to the one end department that is located the inside of mobile jib (1) and has seted up fixture block groove (4), just fixture block groove (4) run through in the both sides of auxiliary rod (2), the inside slidable mounting of fixture block groove (4) has stopper (5) of symmetric distribution, and a side fixed mounting that stopper (5) are close to each other has spacing spring (6), and the inside slidable mounting of mobile jib (1) has elastic adjusting block (9), just the one end that auxiliary rod (2) were kept away from to elastic adjusting block (9) has seted up the locating hole, and the inside slidable mounting of locating hole has bolt (11), evenly distributed's bolt hole (8) is seted up to one side inner wall of mobile jib (1), just bolt hole (8) and bolt (11) match each other, a side fixed mounting that elastic adjusting block (9) and auxiliary rod (2) are close to each other has adjusting spring (10), evenly distributed's spacing groove (7) are all seted up to the both sides face of mobile jib (1), just spacing groove (7) and stopper (5) match each other, spout (12) that set up along its length direction are seted up to a side that bolt hole (8) were kept away from in mobile jib (1), spout (12) run through the inner wall of mobile jib (1), just inside of spout (12) is run through in bolt (11).

2. The telescopic lead screw device of the tunnel trolley according to claim 1, wherein anti-dropping blocks are fixedly mounted on one side surfaces of the two limiting blocks (5) close to each other.

3. The telescopic screw device of a tunnel trolley according to claim 1, characterized in that the interior of the main rod (1) is uniformly coated with lubricant.

4. The telescopic screw rod device of the tunnel trolley according to claim 1, wherein one end of the main rod (1) and the auxiliary rod (2) away from each other is hinged with a supporting plate (3), and the surface of the supporting plate (3) is arranged in a curved surface.

5. The telescopic screw device of a tunnel trolley according to claim 1, characterized in that the telescopic screw (15) is slidably mounted between the trolley frame (14) and the formwork (13).