CN212957509U

CN212957509U - Variable-curvature arc trowel

Info

Publication number: CN212957509U
Application number: CN202020749521.8U
Authority: CN
Inventors: 郑春博; 张超群
Original assignee: China Coal Construction Engineering Group Co ltd
Current assignee: China Coal Construction Engineering Group Co ltd
Priority date: 2020-05-09
Filing date: 2020-05-09
Publication date: 2021-04-13
Anticipated expiration: 2030-05-09

Abstract

The utility model discloses an arc-shaped trowel with variable curvature, which belongs to the field of building construction tools, comprising a trowel plate and a handle, wherein the handle is positioned above the trowel plate, the trowel plate is connected with the handle, the two ends of the trowel plate are warped into arc shapes, the trowel plate is a flexible plate, the handle is connected to the trowel plate through at least two variable-pitch rods, the top end of each variable-pitch rod is hinged with the handle, and the bottom end of each variable-pitch rod is connected with the trowel plate in a sliding way; the variable-pitch rod comprises a top screw rod, a variable-pitch screw sleeve and a bottom screw rod, wherein the lower portion of the top screw rod is provided with threads, the upper portion of the bottom screw rod is provided with threads, the screwing directions of the threads on the top screw rod and the bottom screw rod are opposite, the bottom of the top screw rod is screwed in the variable-pitch screw sleeve, the top of the bottom screw rod is screwed in the variable-pitch screw sleeve, the variable-pitch screw rod mechanism is structurally composed, a whole body is made of a non-metal material or a metal coating material, and the wear resistance and scratch resistance are improved on the basis of ensuring light.

Description

Variable-curvature arc trowel

Technical Field

The utility model relates to a building construction tool field especially relates to an arc trowel suitable for a variable camber.

Background

The utility model provides a building tool commonly used when the wall needs to scrape the cream and go up the marl condition that the trowel indicates, current trowel is generally that the handle connects a planar steel sheet as the daub board, but such trowel board is to some walls that have the radian not very facilitate the use, need follow the surface many times and brush the cream and paint evenly to some old construction workers, through increasing the amount of labour and the technique beautiful and beautiful the cream work that can be competent at the radian wall, but as new people and arm have the construction worker of typhoid, every increase procedure, be exactly at increase workman's intensity of labour and damage workman's health.

SUMMERY OF THE UTILITY MODEL

The utility model aims to avoid the shortcomings in the background technology and provide an arc-shaped trowel with variable curvature.

In order to achieve the above object, the utility model discloses a following technical scheme realizes:

a variable-curvature arc-shaped trowel comprises a trowel plate and a handle, wherein the handle is positioned above the trowel plate, the trowel plate is connected with the handle, two ends of the trowel plate are tilted into an arc shape, the trowel plate is a flexible plate, the handle is connected to the trowel plate through at least two variable-pitch rods, the top end of each variable-pitch rod is hinged with the handle, and the bottom end of each variable-pitch rod is connected with the trowel plate in a sliding manner;

the variable-pitch rod comprises a top screw, a variable-pitch screw sleeve and a bottom screw, wherein the lower part of the top screw is provided with threads, the upper part of the bottom screw is provided with threads, the screwing directions of the threads on the top screw and the bottom screw are opposite, the bottom of the top screw is screwed in the variable-pitch screw sleeve, and the top of the bottom screw is screwed in the variable-pitch screw sleeve.

Further, the outer surface of the variable pitch thread insert is provided with textures for facilitating hand screwing.

Furthermore, the thread in the variable pitch screw sleeve consists of an upper section thread and a lower section thread, the upper section thread is in a turning direction matched with the thread at the lower part of the top screw rod, and the lower section thread is in a turning direction matched with the thread at the upper part of the bottom screw rod.

Furthermore, a cylindrical groove extending along the center line is formed in the upper surface of the dauber plate, and the upper edge of the cylindrical groove is provided with an opening.

Furthermore, the bottom end of the variable-pitch rod extends into the cylindrical groove, the bottom end of the variable-pitch rod is connected with the transition block, a pin shaft penetrates through the center of the transition block, the two sides of the transition block are respectively matched with a petal-shaped ball which is pivoted with the pin shaft, and the petal-shaped ball is clamped into the cylindrical groove.

Furthermore, the bottom end of the variable-pitch rod extends into the cylindrical groove

Adopt above-mentioned technical scheme, the utility model discloses the beneficial effect who produces is:

1. the trowel plate is made of flexible materials, deformation of the trowel plate can be adjusted according to requirements in use, the surface of the trowel plate is suitable for the corresponding surface, learning cost is low, and hands can be brought up quickly.

2. The structure of the mechanism is formed, the whole body is made of non-metal materials or metal coating materials, and the wear resistance and scratch resistance are improved on the basis of ensuring light weight.

3. The adjusting mechanism with the double screws has the advantages that the matching form of clamping the clamping blocks is abandoned, and the adjusting effect is good in the adjusting process, simple and easy to use.

Drawings

Fig. 1 is an overall structure diagram of the present invention.

Fig. 2 is a side view of the structure of the present invention.

Fig. 3 is a structural diagram of the matched forming of the transition block and the petal-shaped ball in fig. 1.

Description of reference numerals:

the device comprises a handle 1, a variable-pitch rod 2, a trowel plate 3, a cylindrical groove 4, a petal-shaped ball 4a and a transition block 4 c;

a top screw 21, a pitch-variable thread sleeve 22 and a bottom screw 23;

Detailed Description

The invention will be further explained below with reference to the accompanying figures 1-3:

the utility model provides an arc trowel of variable camber, including trowel board 3 and hand (hold) 1, the hand (hold) is located the top of trowel board, and the trowel board links to each other with the hand (hold), and the both ends perk of trowel board becomes the arc form, and trowel board 3 is flexible panel, the hand (hold) be connected to the trowel board through two at least displacement poles 2, this embodiment provides three displacement pole, three displacement pole all becomes the equal angle along the central line of trowel board and arranges, the top of displacement pole penetrate to the recess in articulate through the round pin axle, realize wobbling free connected mode.

The top end of each variable-pitch rod is hinged with a handle, the bottom end of each variable-pitch rod is connected with the trowel plate in a sliding mode, and the handle is a slender handle portion with grooves in the two ends and the middle.

As shown in fig. 1, the pitch-variable rod includes a top screw 21, a pitch-variable screw sleeve 22 and a bottom screw 23, the outer surface of the pitch-variable screw sleeve has a texture for facilitating hand screwing, the lower part of the top screw has a thread, the upper part of the bottom screw has a thread, the thread directions of the top screw and the bottom screw are opposite, the bottom of the top screw is screwed in the pitch-variable screw sleeve, the top of the bottom screw is screwed in the pitch-variable screw sleeve, the thread in the pitch-variable screw sleeve is composed of an upper thread and a lower thread, the upper thread is a thread direction matched with the thread at the lower part of the top screw, and the lower thread is a thread direction matched with the thread at the upper part of the bottom screw.

As shown in fig. 3, the upper surface of the daughterboard is provided with a cylindrical groove 4 extending along the central line, the upper edge of the cylindrical groove is provided with an opening, the bottom end of the variable-pitch rod extends into the cylindrical groove, the bottom end of the variable-pitch rod is connected with a transition block, a pin shaft penetrates into the center of the transition block, two sides of the transition block 4c are respectively matched with a petal-shaped ball 4a pivoted with the pin shaft, the cross section of the cylindrical groove is in a fifth of sphere shape, the whole petal-shaped ball sinks into the cylindrical groove, the petal-shaped ball-transition block-petal-shaped ball three-layer sandwich structure is adopted, the lower part of the transition block is hollow, the pin shaft and the petal-shaped ball are in interference fit, and the pin shaft and the transition block are in.

In the using process: according to the corresponding curved surface, the bottom end of the variable pitch rod 2 can slide linearly along the cylindrical groove 4, the petal-shaped ball 4a rolls in the sliding process, the transition block 4c rolls relatively, and when the deformation needs to be adjusted, the top screw 21 and the bottom screw 23 can extend or retract simultaneously by rotating the variable pitch screw sleeve 22, so that the length is changed, and the configuration of the curved surface is changed.

Claims

1. The utility model provides a camber-changing's arc trowel, includes trowel board and hand (hold), and the hand (hold) is located the top of trowel board, and the trowel board links to each other its characterized in that with the hand (hold): the two ends of the trowel plate are tilted into an arc shape, the trowel plate is a flexible plate, the handle is connected to the trowel plate through at least two variable-pitch rods, the top end of each variable-pitch rod is hinged with the handle, and the bottom end of each variable-pitch rod is connected with the trowel plate in a sliding mode;

2. The variable curvature arcuate trowel of claim 1 wherein: the outer surface of the variable pitch thread insert is provided with textures for facilitating hand screwing.

3. The variable curvature arcuate trowel of claim 1 wherein: the thread in the variable pitch screw sleeve consists of an upper section thread and a lower section thread, the upper section thread is in a turning direction matched with the thread at the lower part of the top screw rod, and the lower section thread is in a turning direction matched with the thread at the upper part of the bottom screw rod.

4. The variable curvature arcuate trowel of claim 1 wherein: the upper surface of the dauber plate is provided with a cylindrical groove extending along the center line, and the upper edge of the cylindrical groove is provided with an opening.

5. The variable curvature arcuate trowel of claim 4 wherein: the bottom end of the variable-pitch rod extends into the cylindrical groove, the bottom end of the variable-pitch rod is connected with the transition block, the center of the transition block is penetrated with a pin shaft, the two sides of the transition block are respectively matched with a petal-shaped ball which is pivoted with the pin shaft, and the petal-shaped ball is clamped into the cylindrical groove.

6. The variable curvature arcuate trowel of claim 4 wherein: the bottom end of the variable-pitch rod extends into the cylindrical groove.