CN208419765U - A kind of urban and rural planning design specialized ruler - Google Patents

Abstract

The utility model provides a kind of urban and rural planning design specialized ruler, including shell, winding roller, auxiliary kinking wheel construction is adjusted in driven wheel, driven tooth, top protection frame installs otic placode, swivel plate, inverted U handle, guiding auxiliary press frame structure, is adjusted fixed seat structure, cloth measure, adjustable to install fixed ring structure, Anti-slip cover and adjusting bolt, the winding roll shaft connect in the middle position of shell.The utility model welding hook at left and right sides of the lower part of locating rod is conducive to that fixed function can be played to the end of cloth measure, and is not easy to extract in soil；Driving cog and driven tooth engagement are advantageously implemented bull wheel and drive steamboat, and can increase the speed of winding cloth measure；Protective pad uses with a thickness of five millimeters to eight millimeters of silicagel pad, is conducive to can be avoided the special ruler when in use to fall on ground and damage, and then improves the protection effect to the special ruler bottom.

Description

A kind of urban and rural planning design specialized ruler

Technical field

The utility model belongs to measuring tool technical field more particularly to a kind of urban and rural planning design specialized ruler.

Background technique

When at present using the spacing between two face wall of tape measure, since the shell of tape measure is larger, so by spring steel Ruler is rolled over upwards to be supported on the wall, and even if being arc at spring steel ruler dog-ear by the wall, causes measurement data inaccurate Really, it is also easy to fracture spring steel ruler.

Chinese Patent Application No. is 201420495506.X, a kind of entitled urban and rural planning design specialized of innovation and creation Ruler, it includes tape measure ontology, and tape measure ontology includes shell and spring steel ruler, and scale, spring steel ruler are provided on spring steel ruler Inside housings, the head end of spring steel ruler is exposed at the outside of shell, and the head end of spring steel ruler is connect with baffle, baffle for curling setting It is vertically arranged with spring steel ruler, baffle and spring steel ruler are rotatablely connected by shaft, and the upside of spring steel ruler, bullet is arranged in shaft Scale on spring steel ruler is since the length of shell.

But existing urban and rural planning design specialized ruler there is also inconvenience when a personal use to the end of cloth measure into Row is fixed, and cloth measure is too long to be inconvenient to collect winding, poor to the protection effect of the special ruler bottom, is not had when using on soil Play the role of stationary positioned to the special ruler bottom, pull cloth measure is easy to damage and do not have with discharging friction to play cloth measure repeatedly To the problem of auxiliary clamp effect.

Therefore, a kind of urban and rural planning design specialized ruler is invented to be very necessary.

Utility model content

In order to solve the above-mentioned technical problem, the utility model provides a kind of urban and rural planning design specialized ruler, existing to solve Urban and rural planning design specialized ruler there is end of an inconvenience when personal use to cloth measure to be fixed, cloth measure it is too long not side Just winding is collected, it is poor to the protection effect of the special ruler bottom, do not have when being used on soil and the special ruler bottom is played Stationary positioned effect, pull cloth measure is easy and discharging friction damage and does not have and play the role of auxiliary clamp to cloth measure and ask repeatedly Topic.Auxiliary kinking wheel construction is adjusted in a kind of urban and rural planning design specialized ruler, including shell, winding roller, driven wheel, driven tooth, Top protection frame installs otic placode, swivel plate, and inverted U handle is oriented to and assists press frame structure, adjustable fixed seat structure, cloth measure, Adjustable to install fixed ring structure, Anti-slip cover and adjusting bolt, the winding roll shaft connect in the middle position of shell；Described Driven wheel is arranged in the front of shell and connect with the middle position screw of winding roller；The driven tooth is provided with driven wheel Outside；The adjustable auxiliary kinking wheel construction is mounted on the upside of the front of shell；The top protection frame is welded on peace Fill the upside of otic placode；The mounting ear plate bolt is mounted at left and right sides of the top of shell；The swivel plate passes through adjusting Bolt is mounted on the top of top protection frame；The inverted U handle is welded on the top of swivel plate；The guiding assists pressure Mount structure is embedded in the lower right side of shell；The adjustable fixed seat structure is mounted on the lower part of shell；The cloth measure passes through It perforates and is wrapped on winding roller to auxiliary press frame structure；The fixed ring structure of the adjustable installation is mounted on the right end of cloth measure； The Anti-slip cover is socketed in the outer upper of inverted U handle；The fixed ring structure of the adjustable installation includes rectangle link, Axle bed, locating rod, hook, plug and protective jacket, the rectangle link are glued to the right end of cloth measure；The axle bed axis connects On the left of the inner wall of rectangle link；The locating rod axis connects in the downside of axle bed；The plug is welded on the lower end of locating rod； The protective jacket is socketed in the outer lower portion of locating rod.

Preferably, the adjustable auxiliary kinking wheel construction includes installed in front plate, threaded adjusting bore, driving wheel, axis It holds, fixing bolt, crank and driving cog, the installed in front plate bolt is mounted on the upside of the front of shell；The screw thread Adjustment hole is successively laterally provided with the middle position of installed in front plate from left to right；The driving wheel is arranged in installed in front plate Front side middle position；The outer ring of the bearing is embedded in the middle position of driving wheel；The crank shaft connects in driving wheel Front left；The driving cog is provided with the outside of driving wheel.

Preferably, the adjustable fixed seat structure includes mounting base, trapezoidal support, in lead to branch pipe, connecting rope is fixed Position bolt and protective pad, the mounting base screw are mounted on the bottom of shell；The trapezoidal support is from left to right successively It is glued to the lower part of mounting base；Lead to the lower part that branch pipe is socketed in fastening screw in described；The fastening screw by it is left extremely The right side is successively threaded in the lower part of trapezoidal support；The protective pad be glued in lead to branch pipe lower part.

Preferably, guiding auxiliary press frame structure includes installation outline border, upside installing frame, downside installing frame, guiding Wheel, positioning pipe, movable branching rod, auxiliary pressing wheel are embedded in the lower right side of installation outline border with spring, the installation outline border is held out against；Institute The upside installing frame stated is glued to the upper inside of installation outline border；The downside installing frame is glued to the interior subordinate of installation outline border Side；The positioning pipe is plugged on the upside middle position of installing frame and the middle position of downside installing frame respectively；The work Dynamic strut is plugged on the lower inside and inside upper part of positioning pipe respectively；Axis connects in movable branching rod the auxiliary pressing wheel respectively Lower end and upper end.

Preferably, there are four hook settings, the welding hook is at left and right sides of the lower part of locating rod.

Preferably, there are four directive wheel settings；Axis connects in the lower part of upside installing frame the directive wheel respectively At left and right sides of the left and right sides and the top of downside installing frame.

Preferably, the inside for holding out against spring and positioning pipe being set, and upper and lower ends respectively with positioning pipe in It is glued one end of wall and movable branching rod.

Preferably, the fixing bolt is threadedly coupled through the inner ring of bearing with threaded adjusting bore, the screw thread tune There are three knothole settings.

Preferably, described connecting rope one end is glued to the lower right side of trapezoidal support, the other end be glued in lead to branch pipe Upper right side.

Preferably, the Anti-slip cover specifically uses silica gel sheath, has portrayed on the outside of the Anti-slip cover wavy anti-skidding Line.

Preferably, the protective jacket specifically uses wall thickness for two millimeters to three millimeters of silica gel sheath.

Preferably, the silicagel pad that the protective pad uses with a thickness of five millimeters to eight millimeters.

Preferably, the lower end of the fastening screw opens up as taper.

Preferably, the driving cog and driven tooth engagement.

Compared with prior art, the utility model has the following beneficial effects:

1. in the utility model, there are four the hook settings, and the welding hook is in the lower part or so of locating rod Two sides insert it into soil when in use, are conducive to that fixed function can be played to the end of cloth measure, and be not easy in soil It is extracted in earth.

2. in the utility model, the driving cog and driven tooth engagement hold crank and rotate clockwise driving wheel rotation, Make it drive winding roller to rotate by driven wheel using driving cog and driven tooth engagement, is advantageously implemented bull wheel and drives steamboat, and The speed of winding cloth measure can be increased.

3. in the utility model, the silicagel pad that the protective pad uses with a thickness of five millimeters to eight millimeters is conducive to It can be avoided the special ruler when use and fall on ground and damage, and then improve the protection effect to the special ruler bottom.

4. in the utility model, the lower end of the fastening screw is opened up as taper, and being conducive to will when using on soil It is inserted into soil, can play the role of good stationary positioned to the bottom of the special ruler.

5. in the utility model, there are four the directive wheel settings；Axis connects in upside installation the directive wheel respectively At left and right sides of the lower part of frame and at left and right sides of the top of downside installing frame, be conducive to prevent cloth measure and upside from pacifying when in use It frames up or downside installing frame friction damages.

6. in the utility model, the inside for holding out against spring and positioning pipe being set, and it is respectively and fixed in upper and lower ends The inner wall of position pipe and one end of movable branching rod are glued, and are conducive to that additional lock can be played to cloth measure using auxiliary pressing wheel when in use Tight effect, and can be avoided cloth measure when not in use and easily drop out inside the shell.

7. in the utility model, the fixing bolt is threadedly coupled through the inner ring of bearing with threaded adjusting bore, described Threaded adjusting bore setting there are three, fixing bolt is back-outed in threaded adjusting bore when not in use, and to the left or right side Fixing bolt, the inside of threaded adjusting bore is then threaded in through the inner ring of bearing, is conducive to basis by mobile driving wheel Using the required position that driving wheel is adjusted, and it can be avoided driving cog and driven tooth contact when not in use.

8. in the utility model, described connecting rope one end is glued to the lower right side of trapezoidal support, during the other end is glued to The upper right side of logical branch pipe is conducive to when not needing to lead to branch pipe in, can prevent in lead to branch pipe and be dropped and lost.

9. in the utility model, the protective jacket specifically uses wall thickness for two millimeters to three millimeters of silica gel sheath, favorably In that can play a protective role when not in use to hook and plug, while locating rod can be connected in rectangle link Side.

10. in the utility model, the Anti-slip cover specifically uses silica gel sheath, wave has been portrayed on the outside of the Anti-slip cover Wave-like anti-skid chequer is conducive to improve antiskid effect when holding.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model.

Fig. 2 is the structural schematic diagram of the adjustable auxiliary kinking wheel construction of the utility model.

Fig. 3 is the structural schematic diagram of the guiding auxiliary press frame structure of the utility model.

Fig. 4 is the structural schematic diagram of the adjustable fixed seat structure of the utility model.

Fig. 5 is the structural schematic diagram of the fixed ring structure of adjustable installation of the utility model.

In figure:

1, shell；2, winding roller；3, driven wheel；4, driven tooth；5, auxiliary kinking wheel construction is adjusted；51, installed in front Plate；52, threaded adjusting bore；53, driving wheel；54, bearing；55, fixing bolt；56, crank；57, driving cog；6, top protection Frame；7, otic placode is installed；8, swivel plate；9, inverted U handle；10, guiding auxiliary press frame structure；101, outline border is installed；102, upside Installing frame；103, downside installing frame；104, directive wheel；105, positioning pipe；106, movable branching rod；107, auxiliary pressing wheel；108, it pushes up Tight spring；11, fixed seat structure is adjusted；111, mounting base；112, trapezoidal support；113, lead to branch pipe in；114, connecting rope； 115, fastening screw；116, protective pad；12, cloth measure；13, it is adjusted and fixed ring structure is installed；131, rectangle link；132, axis Seat；133, locating rod；134, it links up with；135, plug；136, protective jacket；14, Anti-slip cover；15, bolt is adjusted.

Specific embodiment

The utility model is described further below in conjunction with attached drawing:

Embodiment:

As shown in attached drawing 1 and attached drawing 3

The utility model provides a kind of urban and rural planning design specialized ruler, including shell 1, winding roller 2, driven wheel 3, driven tooth 4, auxiliary kinking wheel construction 5 is adjusted, top protection frame 6 installs otic placode 7, swivel plate 8, inverted U handle 9, guiding auxiliary press box Structure 10, adjustable fixed seat structure 11, cloth measure 12 are adjusted and install fixed ring structure 13, Anti-slip cover 14 and adjusting bolt 15, 2 axis of winding roller connects in the middle position of shell 1；The driven wheel 3 be arranged in the front of shell 1 and with winding roller 2 Middle position screw connection；The driven tooth 4 is provided with the outside of driven wheel 3；The adjustable auxiliary winding wheel knot Structure 5 is mounted on the upside of the front of shell 1；The top protection frame 6 is welded on the upside of installation otic placode 7；The mounting ear 7 screw of plate is mounted at left and right sides of the top of shell 1；The swivel plate 8 is mounted on top protection frame 6 by adjusting bolt 15 Top；The inverted U handle 9 is welded on the top of swivel plate 8；The guiding auxiliary press frame structure 10 is embedded in shell 1 lower right side；The adjustable fixed seat structure 11 is mounted on the lower part of shell 1；The cloth measure 12 is through guiding auxiliary Press frame structure 10 is wrapped on winding roller 2；The fixed ring structure 13 of the adjustable installation is mounted on the right end of cloth measure 12；It is described Anti-slip cover 14 be socketed in the outer upper of inverted U handle 9；The Anti-slip cover 14 specifically uses silica gel sheath, and described is anti-skidding Wavy anti-skid chequer has been portrayed in the outside of set 14, and can be improved antiskid effect when gripping；The adjustable installation is fixed Ring structure 13 includes rectangle link 131, axle bed 132, locating rod 133, hook 134, plug 135 and protective jacket 136, the square Shape link 131 is glued to the right end of cloth measure 12；132 axis of axle bed connects on the left of the inner wall of rectangle link 131；Described determines Position 133 axis of bar connects in the downside of axle bed 132；The plug 135 is welded on the lower end of locating rod 133；The protective jacket 136 It is socketed in the outer lower portion of locating rod 133；There are four the settings of hook 134, and the hook 134 is welded on locating rod At left and right sides of 133 lower part, insert it into soil when in use, and fixed function can be played to the end of cloth measure 12, And be not easy to extract in soil, the protective jacket 136 specifically uses wall thickness for two millimeters to three millimeters of silica gel sheath, not It can play a protective role to hook 134 and plug 135 when use, while locating rod 133 can be connected to rectangle link 131 Inside.

As shown in Figure 1 and Figure 2, in above-described embodiment, specifically, the adjustable auxiliary kinking wheel construction 5 wraps Installed in front plate 51, threaded adjusting bore 52, driving wheel 53, bearing 54, fixing bolt 55, crank 56 and driving cog 57 are included, it is described 51 screw of installed in front plate be mounted on the upside of the front of shell 1；The threaded adjusting bore 52 is successively laterally opened from left to right It is located at the middle position of installed in front plate 51；The front side middle position of installed in front plate 51 is arranged in the driving wheel 53；Institute The outer ring for the bearing 54 stated is embedded in the middle position of driving wheel 53；56 axis of crank connects left in the front of driving wheel 53 Side；The driving cog 57 is provided with the outside of driving wheel 53；The driving cog 57 is engaged with driven tooth 4, holds crank 56 The rotation of driving wheel 53 is rotated clockwise, it is engaged with driven tooth 4 using driving cog 57 and drives winding roller 2 to revolve by driven wheel 3 Turn, realizes that bull wheel drives steamboat, and the speed of winding cloth measure 12 can be increased, the fixing bolt 55 is interior through bearing 54 Circle is threadedly coupled with threaded adjusting bore 52, and there are three the settings of threaded adjusting bore 52, when not in use by fixing bolt 55 Back-out in threaded adjusting bore 52, and to the left or the mobile driving wheel 53 in right side, then by fixing bolt 55 through bearing 54 Inner ring is threaded in the inside of threaded adjusting bore 52, and according to the position that driving wheel 53 is adjusted needed for using, and not It can be avoided driving cog 57 when use to contact with driven tooth 4.

As shown in attached drawing 1 and attached drawing 4, in above-described embodiment, specifically, the adjustable fixed seat structure 11 includes peace Fill bottom plate 111, trapezoidal support 112, in lead to branch pipe 113, connecting rope 114, fastening screw 115 and protective pad 116, the installation 111 screw of bottom plate is mounted on the bottom of shell 1；The trapezoidal support 112 is successively glued to mounting base 111 from left to right Lower part；Lead to the lower part that branch pipe 113 is socketed in fastening screw 115 in described；The fastening screw 115 successively spiral shell from left to right Line is connected to the lower part of trapezoidal support 112；The protective pad 116 be glued in lead to branch pipe 113 lower part；The protective pad 116 are damaged using with a thickness of five millimeters to eight millimeters of silicagel pads, can be avoided the special ruler when in use and fall on ground, And then improve to the protection effect of the special ruler bottom, the lower end of the fastening screw 115 opens up as taper, makes on soil Used time inserts it into soil, can play the role of good stationary positioned, the connecting rope to the bottom of the special ruler 114 one end are glued to the lower right side of trapezoidal support 112, the other end be glued in lead to the upper right side of branch pipe 113, do not need using In lead to branch pipe 113 when, can prevent in lead to branch pipe 113 be dropped and lost.

As shown in attached drawing 1 and attached drawing 3, in above-described embodiment, specifically, the guiding auxiliary press frame structure 10 includes peace Fill outline border 101, upside installing frame 102, downside installing frame 103, directive wheel 104, positioning pipe 105, movable branching rod 106, auxiliary pressure Wheel 107 is embedded in the lower right side of installation outline border 101 with spring 108, the installation outline border 101 is held out against；The upside installation Frame 102 is glued to the upper inside of installation outline border 101；The downside installing frame 103 is glued to the interior subordinate of installation outline border 101 Side；The positioning pipe 105 is plugged on the upside middle position of installing frame 102 and the middle position of downside installing frame 103 respectively； The movable branching rod 106 is plugged on the lower inside and inside upper part of positioning pipe 105 respectively；The auxiliary pressing wheel 107 divides Other axis connects in the lower end and upper end of movable branching rod 106；There are four the settings of directive wheel 104；The directive wheel 104 is distinguished Axis connects at left and right sides of the lower part of upside installing frame 102 and at left and right sides of the top of downside installing frame 103, can prevent when in use Only cloth measure 12 is damaged with upside installing frame 102 or the friction of downside installing frame 103, and described holds out against the setting of spring 108 fixed The inside of position pipe 105, and be glued respectively with one end of the inner wall of positioning pipe 105 and movable branching rod 106 in upper and lower ends, it is using When can play the role of auxiliary clamp to cloth measure 12 using auxiliary pressing wheel 107, and it is light to can be avoided cloth measure 12 when not in use Easy drops out in shell 1.

Working principle

The utility model holds rectangle link 131 during the work time, when use and cloth measure 12 is extracted out in shell 1, Then it is articulated on fixture using rectangle link 131 or is inserted into soil using locating rod 133 to the end of cloth measure 12 Fixed function is played at end, then holds inverted U handle 9 and is stretched, while playing guiding to cloth measure 12 using directive wheel 104 and making With playing auxiliary pressuring action to cloth measure 12 using auxiliary pressing wheel 107, then measure required measurement position using cloth measure 12 Length, be moved to after certain position and lead to branch pipe 113 in and removed on trapezoidal support 112, and utilize fastening screw 115 It is plugged in soil, so that the bottom to the special ruler is fixed, driving wheel 53 is placed on installed in front when not in use The middle position of plate 51, and the inner ring using fixing bolt 55 through bearing 54 is threaded in threaded adjusting bore 52, and is made Driving cog 57 is engaged with driven tooth 4, and then gripping crank 56 rotates clockwise driving wheel 53 and makes it through the drive winding of driven wheel 3 The rotation of roller 2 is wound cloth measure 12.

Using technical solution described in the utility model or those skilled in the art in technical solutions of the utility model Under inspiration, similar technical solution is designed, and reaches above-mentioned technical effect, is the protection model for falling into the utility model It encloses.

Claims (10)

1. a kind of urban and rural planning design specialized ruler, which is characterized in that the urban and rural planning design specialized ruler, including shell (1), winding Auxiliary kinking wheel construction (5) is adjusted in roller (2), driven wheel (3), driven tooth (4), and top protection frame (6) is installed otic placode (7), Swivel plate (8), inverted U handle (9), guiding auxiliary press frame structure (10) are adjusted fixed seat structure (11), and cloth measure (12) can It adjusts and installs fixed ring structure (13), Anti-slip cover (14) and adjusting bolt (15), the winding roller (2) axis connect in shell (1) Middle position；The driven wheel (3) is arranged the front in shell (1) and connect with the middle position screw of winding roller (2)； The driven tooth (4) is provided with the outside of driven wheel (3)；The adjustable auxiliary kinking wheel construction (5) is mounted on shell (1) on the upside of front；The top protection frame (6) is welded on the upside of installation otic placode (7)；Described installation otic placode (7) spiral shell Nail is mounted at left and right sides of the top of shell (1)；The swivel plate (8) is mounted on top protection frame by adjusting bolt (15) (6) top；The inverted U handle (9) is welded on the top of swivel plate (8)；The guiding assists press frame structure (10) It is embedded in the lower right side of shell (1)；The adjustable fixed seat structure (11) is mounted on the lower part of shell (1)；The cloth Ruler (12) is wrapped on winding roller (2) through guiding auxiliary press frame structure (10)；The fixed ring structure of the adjustable installation (13) it is mounted on the right end of cloth measure (12)；The Anti-slip cover (14) is socketed in the outer upper of inverted U handle (9)；Described Adjustable installation fixed ring structure (13) includes rectangle link (131), and axle bed (132), locating rod (133) is linked up with (134), slotting Head (135) and protective jacket (136), the rectangle link (131) are glued to the right end of cloth measure (12)；The axle bed (132) Axis connects on the left of the inner wall of rectangle link (131)；Described locating rod (133) axis connects in the downside of axle bed (132)；Described inserts Head (135) is welded on the lower end of locating rod (133)；The protective jacket (136) is socketed in the outer lower portion of locating rod (133).

2. urban and rural planning design specialized ruler as described in claim 1, which is characterized in that the adjustable auxiliary winding wheel knot Structure (5) includes installed in front plate (51), threaded adjusting bore (52), driving wheel (53), bearing (54), fixing bolt (55), crank (56) it is mounted on the upside of the front of shell (1) with driving cog (57), described installed in front plate (51) screw；The screw thread tune Knothole (52) is successively laterally provided with the middle position of installed in front plate (51) from left to right；Driving wheel (53) setting exists The front side middle position of installed in front plate (51)；The outer ring of the bearing (54) is embedded in the middle position of driving wheel (53)； Described crank (56) axis connects the front left in driving wheel (53)；The driving cog (57) is provided with the outer of driving wheel (53) Side.

3. urban and rural planning design specialized ruler as described in claim 1, which is characterized in that the adjustable fixed seat structure (11) include mounting base (111), trapezoidal support (112), in lead to branch pipe (113), connecting rope (114), fastening screw (115) and Protective pad (116), the mounting base (111) screw are mounted on the bottom of shell (1)；The trapezoidal support (112) by Left-to-right is successively glued to the lower part of mounting base (111)；Lead to branch pipe (113) in described and is socketed in fastening screw (115) Lower part；The fastening screw (115) is successively threaded in the lower part of trapezoidal support (112) from left to right；The protection Pad (116) be glued in lead to branch pipe (113) lower part.

4. urban and rural planning design specialized ruler as described in claim 1, which is characterized in that the guiding assists press frame structure It (10) include installation outline border (101), upside installing frame (102), downside installing frame (103), directive wheel (104), positioning pipe (105), movable branching rod (106), auxiliary pressing wheel (107) and hold out against spring (108), and the installation outline border (101) is embedded in peace Fill the lower right side of outline border (101)；The upside installing frame (102) is glued to the upper inside of installation outline border (101)；Described Downside installing frame (103) is glued to the inner lower of installation outline border (101)；The positioning pipe (105) is plugged on upside respectively The middle position of installing frame (102) and the middle position of downside installing frame (103)；The movable branching rod (106) grafting respectively In the lower inside and inside upper part of positioning pipe (105)；Axis connects in movable branching rod (106) auxiliary pressing wheel (107) respectively Lower end and upper end.

5. urban and rural planning design specialized ruler as described in claim 1, which is characterized in that the hook (134) is provided with four A, the hook (134) is welded at left and right sides of the lower part of locating rod (133).

6. urban and rural planning design specialized ruler as claimed in claim 4, which is characterized in that the directive wheel (104) is provided with Four；Axis connects in the lower part of upside installing frame (102) left and right sides and downside installing frame the directive wheel (104) respectively (103) at left and right sides of top.

7. urban and rural planning design specialized ruler as claimed in claim 4, which is characterized in that described holds out against spring (108) setting In the inside of positioning pipe (105), and in upper and lower ends one end with the inner wall of positioning pipe (105) and movable branching rod (106) respectively It is glued.

8. urban and rural planning design specialized ruler as claimed in claim 2, which is characterized in that the fixing bolt (55) runs through axis The inner ring for holding (54) is threadedly coupled with threaded adjusting bore (52), and there are three the threaded adjusting bore (52) settings.

9. urban and rural planning design specialized ruler as claimed in claim 3, which is characterized in that connecting rope (114) one end glue Connect the lower right side in trapezoidal support (112), the other end be glued in lead to the upper right side of branch pipe (113).

10. urban and rural planning design specialized ruler as claimed in claim 2, which is characterized in that the Anti-slip cover (14) is specifically adopted With silica gel sheath, the Anti-slip cover has portrayed wavy anti-skid chequer on the outside of (14).