Portable sleeve positioning tool

Abstract

The utility model discloses a portable casing pipe positioning tool which comprises a positioning piece, a ruler and a fixing frame, the ruler is detachably installed on the positioning piece through a connecting piece, the positioning piece is provided with angle scribed lines, the angle scribed lines can record the rotating angle of the ruler relative to the positioning piece in the horizontal direction, and the angle scribed lines can record the rotating angle of the ruler relative to the positioning piece in the horizontal direction. The ruler is detachably provided with a fixing frame through a first locking piece, and the fixing frame is used for detachably installing a sleeve. The utility model aims to provide the portable casing pipe positioning tool which can reduce the problem that the deviation between the reserved position of each casing pipe and the given size of a construction drawing is large due to measurement errors and marking errors in the construction process.

Description

Technical Field

[0001] The utility model relates to the field of construction, in particular to a tool for building construction. Background Technique

[0002] At present, in traditional construction operations, when reserving floor sleeves in kitchens and bathrooms, on-site marking is mostly carried out one by one. After the steel bars of the first and second floors of the civil engineering specialty are tied, the four diagonals of the sleeve are firmly fixed to the steel bars with steel nails and binding wires, and the inside of the sleeve is tightly filled with sawdust or sealed with tape pasted up and down. After the main body formwork is removed, clean up and align with a plumb line.

[0003] Since this construction method is completed in multiple steps of one-by-one measurement, marking, and pipe laying, inevitable errors exist, resulting in a large deviation between the reserved position of each sleeve and the given size in the construction drawing. Especially for the main pipes passing through each floor, due to the deviation of the reserved hole position layer by layer, the verticality of the main pipes cannot be ensured, which not only affects the appearance quality, but may even cause quality defects such as loose connection and water seepage of the main pipes. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a portable sleeve positioning tool, which can reduce the problem that the deviation between the reserved position of each sleeve and the given size in the construction drawing is large due to measurement errors and marking errors during the construction process.

[0005] The portable sleeve positioning tool of the utility model includes a positioning member, a straight ruler and a fixing frame. The straight ruler is a strip-shaped plate structure, and both ends of the straight ruler are semicircular. The straight ruler is detachably installed on the positioning member through a connecting member. The straight ruler is arranged horizontally. Angle graduation lines are provided on the positioning member, and the angle graduation lines can record the angle that the straight ruler rotates relative to the positioning member along the horizontal direction. A fixing frame is detachably installed on the straight ruler through a first locking member. The fixing frame is located below the straight ruler, and the fixing frame is used to detachably install the sleeve.

[0006] The portable casing positioning tool of the present utility model, wherein the fixing frame includes a first screw rod arranged vertically. An upper sleeve and a lower sleeve are respectively sleeved on the first screw rod. The upper sleeve is located above the lower sleeve and the two are arranged at intervals. A first nut is threadedly connected to the first screw rod above the upper sleeve, and the first nut abuts against the upper sleeve. A spring is installed between the lower sleeve and the lower end of the first screw rod. A plurality of upper support rods all extending downward are hinged on the upper sleeve. The upper ends of the plurality of upper support rods are hinged on the upper sleeve at intervals along the circumferential direction of the upper sleeve. A plurality of lower support rods all extending downward are hinged on the lower sleeve. The upper ends of the plurality of lower support rods are hinged on the lower sleeve at intervals along the circumferential direction of the lower sleeve. The length of the upper support rod is greater than that of the lower support rod. The plurality of upper support rods and the plurality of lower support rods are arranged in one-to-one correspondence. The lower end of the upper support rod and the lower end of the corresponding lower support rod are hinged on a support plate through the same pin shaft. The support plate is used for detachably installing a casing. The upper end of the first screw rod is detachably installed on a straight ruler through a first locking member.

[0007] The portable casing positioning tool of the present utility model, wherein the positioning member includes a first vertical side plate, a second vertical side plate and a horizontal plate. The first vertical side plate and the second vertical side plate are both arranged vertically. The first vertical side plate is perpendicularly connected to the second vertical side plate. A horizontal plate is connected between the tops of the first vertical side plate and the second vertical side plate. Angle scale lines are provided on the upper surface of the horizontal plate. The center of the angle scale lines is located on the intersection line of the first vertical side plate and the second vertical side plate. The connecting member includes a connecting bolt. An indicating arrow is vertically fixed on the screw rod of the connecting bolt. A chute arranged along the length direction is formed on the straight ruler. The screw rod of the connecting bolt passes through the chute of the straight ruler and is then threadedly connected to the upper surface of the horizontal plate. The axis of the connecting bolt coincides with the intersection line of the first vertical side plate and the second vertical side plate. The indicating arrow is engaged in the chute of the straight ruler. When the straight ruler rotates horizontally around the axis of the connecting bolt, the angle scale lines can record the angle by which the straight ruler rotates relative to the first vertical side plate or the second vertical side plate.

[0008] The portable casing positioning tool of the present utility model, wherein the first locking member includes a first locking bolt and a first locking nut. A first clamping block is vertically fixed on the screw rod of the first locking bolt. The upper end of the first screw rod is threadedly connected to a first connecting cylinder. The screw rod of the first locking bolt passes through the chute of the straight ruler and the first locking nut from top to bottom and is then threadedly connected to the cavity of the first connecting cylinder. The straight ruler abuts between the head of the first locking bolt and the first locking nut. The first clamping block is engaged in the chute of the straight ruler.

[0009] The portable casing positioning tool of the utility model, wherein a support frame is detachably mounted on the straight ruler through a second locking member. The support frame is located below the straight ruler. The support frame includes a second screw rod arranged vertically. A support disc is fixedly provided on the second screw rod. A plurality of support long rods all extending downward are hinged on the support disc. The upper ends of the plurality of support long rods are hinged on the support disc at intervals along the circumferential direction of the support disc. A support sleeve is sleeved on the second screw rod below the support disc. A support short rod is hinged between the support sleeve and each support long rod. The upper end of the second screw rod is detachably mounted on the straight ruler through the second locking member.

[0010] The portable casing positioning tool of the utility model, wherein the second locking member includes a second locking bolt and a second locking nut. A second clamping block is vertically fixedly provided on the screw rod of the second locking bolt. The upper end of the second screw rod is threadedly connected with a second connecting cylinder. The screw rod of the second locking bolt sequentially passes through the chute of the straight ruler and the second locking nut from top to bottom and is then threadedly connected in the cavity of the second connecting cylinder. The straight ruler abuts between the head of the second locking bolt and the second locking nut. The second clamping block is clamped in the chute of the straight ruler. A second nut is threadedly connected on the second screw rod below the second connecting cylinder. The second nut abuts against the second connecting cylinder.

[0011] The portable casing positioning tool of the utility model, wherein a plurality of straight rulers are provided. The plurality of straight rulers are connected into a horizontally arranged straight ruler frame through a third locking member. One straight ruler in the straight ruler frame is detachably mounted on a positioning member through a connecting member. A fixing frame is detachably mounted on at least one straight ruler in the straight ruler frame through a first locking member. A support frame is detachably mounted on at least one straight ruler in the straight ruler frame through a second locking member. Any two adjacent straight rulers in the straight ruler frame are respectively a first straight ruler and a second straight ruler. The first straight ruler and the second straight ruler are connected through a third locking member.

[0012] The portable casing positioning tool of the utility model, wherein the third locking member includes a third locking bolt and a third locking nut. A third clamping block is vertically fixedly provided on the screw rod of the third locking bolt.

[0013] The screw rod of the third locking bolt sequentially passes through the chutes of the first straight ruler and the second straight ruler and is then threadedly connected with the third locking nut. The head of the third locking bolt, the first straight ruler, the second straight ruler and the third locking nut abut against each other. The third clamping block is clamped in the chute of the first straight ruler, or

[0014] The screw rod of the third locking bolt sequentially passes through the sliding grooves of the second straight ruler and the first straight ruler and is then threadedly connected to the third locking nut. The head of the third locking bolt, the second straight ruler, the first straight ruler, and the third locking nut are in mutual abutment, and the third clamping block is engaged in the sliding groove of the second straight ruler.

[0015] For the portable casing positioning tool of the present utility model, a plurality of straight rulers are provided, and the plurality of straight rulers are connected by a second locking member and a third locking member to form a horizontally arranged straight ruler frame. One of the straight rulers in the straight ruler frame is detachably mounted on the positioning member through a connecting member. A fixing frame is detachably mounted on at least one of the straight rulers in the straight ruler frame through a first locking member. A supporting frame is detachably mounted on at least one of the straight rulers in the straight ruler frame through a second locking member. Any two adjacent straight rulers in the straight ruler frame are a first straight ruler and a second straight ruler. At least one pair of the first straight ruler and the second straight ruler are connected by a second locking member, and a supporting frame is connected to the second locking member connecting the first straight ruler and the second straight ruler. The remaining pairs of the first straight ruler and the second straight ruler are connected by a third locking member.

[0016] For the portable casing positioning tool of the present utility model, the third locking member includes a third locking bolt and a third locking nut. A third clamping block is vertically fixed on the screw rod of the third locking bolt.

[0017] The screw rod of the third locking bolt sequentially passes through the sliding grooves of the first straight ruler and the second straight ruler and is then threadedly connected to the third locking nut. The head of the third locking bolt, the first straight ruler, the second straight ruler, and the third locking nut are in mutual abutment, and the third clamping block is engaged in the sliding groove of the first straight ruler, or

[0018] The screw rod of the third locking bolt sequentially passes through the sliding grooves of the second straight ruler and the first straight ruler and is then threadedly connected to the third locking nut. The head of the third locking bolt, the second straight ruler, the first straight ruler, and the third locking nut are in mutual abutment, and the third clamping block is engaged in the sliding groove of the second straight ruler.

[0019] The difference between the portable casing positioning tool of the present utility model and the prior art lies in that during the construction process of the kitchen or bathroom, after the floor slab steel bars of the kitchen or bathroom are tied up, the positioning member is fixed at a certain corner of the kitchen or bathroom. Then, the straight ruler is installed on the positioning member through the connecting member. According to the construction drawings, the installation position of the casing relative to the positioning member is determined (such as determining the deflection angle and distance of the installation position of the casing relative to the positioning member, that is to say, the two-dimensional coordinates of the installation position of the casing relative to the positioning member in the horizontal plane can be determined). Then, the straight ruler is rotated relative to the positioning member so that the straight ruler turns a certain angle (the construction worker can read the turned angle through the angle scale line on the positioning member). Then, the fixing bracket is installed on the straight ruler through the first locking member, and the fixing bracket is kept at a certain distance from the positioning member (the construction worker can read this distance through the length scale line on the straight ruler). In this way, through the straight ruler, the fixing bracket can be deflected by a certain angle and distance relative to the positioning member, so that the fixing bracket reaches the installation position of the casing. Then, the casing is installed on the fixing bracket, and then the four corners of the casing are firmly fixed on the steel bars with steel nails and binding wires, and sawdust is stuffed inside the casing or sealed with tape pasted up and down. Then, the casing is removed from the fixing bracket, and then the entire positioning tool is removed from the kitchen or bathroom, and the next step of construction can be carried out on the floor slab of the kitchen or bathroom. The construction worker can move the positioning tool to the kitchen or bathroom on the upper or lower floor to perform the same operation to install the casing on this floor, so that the casings of the upper and lower kitchens or bathrooms can be accurately aligned vertically according to the installation positions given in the construction drawings, and the problem that the reserved positions of each casing deviate greatly from the dimensions given in the construction drawings due to measurement errors and marking errors during the construction process can be reduced. Thus, it can be seen that the present utility model belongs to a convenient portable tool.

[0020] The present utility model will be further described below with reference to the accompanying drawings. Description of the Drawings

[0021] Figure 1 is a schematic structural view of Embodiment 1 of the portable casing positioning tool of the present utility model;

[0022] Figure 2 is a schematic structural view of the positioning member in Embodiment 1 of the portable casing positioning tool of the present utility model;

[0023] Figure 3 is the front view of the first locking member in Embodiment 1 of the portable casing positioning tool of the present utility model (which is also the front view of the second locking member and the third locking member);

[0024] Figure 4 is the top view of the first locking member in Embodiment 1 of the portable casing positioning tool of the present utility model (which is also the top view of the second locking member and the third locking member);

[0025] Figure 5Left view of the first locking member in the first embodiment of the portable casing positioning tool of the present utility model (which is also the left view of the second and third locking members);

[0026] Figure 6 Right view of the first locking member in the first embodiment of the portable casing positioning tool of the present utility model (which is also the right view of the second and third locking members);

[0027] Figure 7 Three-dimensional view of the first locking member in the first embodiment of the portable casing positioning tool of the present utility model Figure 1 (which is also the three-dimensional view of the second and third locking members Figure 1 );

[0028] Figure 8 Three-dimensional view of the first locking member in the first embodiment of the portable casing positioning tool of the present utility model Figure 2 (which is also the three-dimensional view of the second and third locking members Figure 2 );

[0029] Figure 9 Structural schematic diagram of the connecting member in the first embodiment of the portable casing positioning tool of the present utility model;

[0030] Figure 10 Structural schematic diagram of the support frame in the first embodiment of the portable casing positioning tool of the present utility model;

[0031] Figure 11 Front view of the fixing frame in the first embodiment of the portable casing positioning tool of the present utility model;

[0032] Figure 12 Three-dimensional view of the fixing frame in the first embodiment of the portable casing positioning tool of the present utility model Figure 1 ;

[0033] Figure 13 Three-dimensional view of the fixing frame in the first embodiment of the portable casing positioning tool of the present utility model Figure 2 ;

[0034] Figure 14 Structural schematic diagram of the short ruler in the first embodiment of the portable casing positioning tool of the present utility model;

[0035] Figure 15 Structural schematic diagram of the long ruler in the first embodiment of the portable casing positioning tool of the present utility model;

[0036] Figure 16 Structural schematic diagram of the second embodiment of the portable casing positioning tool of the present utility model. Detailed implementation manners

[0037] Embodiment 1

[0038] As Figure 1 shown, and in combination with Figure 2 - 15 shown, the portable casing positioning tool of the utility model includes a positioning member 1, a straight ruler 6 and a fixing frame 12. The straight ruler 6 is in a strip-shaped plate structure. Both ends of the straight ruler 6 are semi-circular. The straight ruler 6 is detachably mounted on the positioning member 1 through a connecting member 5. The straight ruler 6 is arranged in the horizontal direction. Angle graduation lines are provided on the positioning member 1, and the angle graduation lines can record the angle that the straight ruler 6 rotates relative to the positioning member 1 in the horizontal direction. A fixing frame 12 is detachably mounted on the straight ruler 6 through a first locking member 11. The fixing frame 12 is located below the straight ruler 6, and the fixing frame 12 is used to detachably mount a casing.

[0039] As Figure 11 - 13 shown, the fixing frame 12 includes a first screw rod 28 arranged vertically. An upper sleeve 30 and a lower sleeve 37 are respectively sleeved on the first screw rod 28. There are gaps between both the upper sleeve 30 and the lower sleeve 37 and the first screw rod 28. The upper sleeve 30 is located above the lower sleeve 37 and the two are arranged at intervals. A first nut 29 is threadedly connected to the first screw rod 28 above the upper sleeve 30, and the first nut 29 abuts against the upper sleeve 30. A spring 33 is installed between the lower sleeve 37 and the lower end of the first screw rod 28. A plurality of upper support rods 31 that all extend downward are hinged on the upper sleeve 30. The upper ends of the plurality of upper support rods 31 are evenly spaced along the circumferential direction of the upper sleeve 30 and are hinged on the upper sleeve 30. A plurality of lower support rods 32 that all extend downward are hinged on the lower sleeve 37. The upper ends of the plurality of lower support rods 32 are evenly spaced along the circumferential direction of the lower sleeve 37 and are hinged on the lower sleeve 37. The length of the upper support rod 31 is greater than that of the lower support rod 32. The plurality of upper support rods 31 and the plurality of lower support rods 32 are arranged in one-to-one correspondence. The lower end of the upper support rod 31 and the lower end of the corresponding lower support rod 32 are hinged on a support plate 34 through the same pin shaft. The support plate 34 is used to detachably mount a casing. The upper end of the first screw rod 28 is detachably mounted on the straight ruler 6 through a first locking member 11.

[0040] A tray 36 is fixedly provided at the lower end of the first screw rod 28. The spring 33 is sleeved on the first screw rod 28, and there is a gap between the spring 33 and the first screw rod 28. The upper end of the spring 33 abuts against the lower sleeve 37, and the lower end of the spring 33 abuts against the tray 36.

[0041] The number of the upper support rods 31, the lower support rods 32 and the support plates 34 is the same. The plurality of support plates 34 and the plurality of upper support rods 31 / lower support rods 32 are arranged in one-to-one correspondence. For a group of corresponding upper support rods 31, lower support rods 32 and support plates 34, the lower ends of the upper support rod 31 and the lower support rod 32 are jointly hinged on the support plate 34 through the same pin shaft.

[0042] When installing the sleeve on the fixing frame 12, the sleeve is sleeved on the outside of the fixing frame 12 vertically from bottom to top. The lower end of the fixing frame 12 is located inside the sleeve. At this time, there is a gap between the fixing frame 12 and the inner pipe wall of the sleeve. Then, rotate the first nut 29 to make the first nut 29 move downward along the first screw rod 28. Thus, the upper sleeve 30 also moves downward along the first screw rod 28, the upper support rod 31 hinged to the upper sleeve 30 also moves downward, the support plate 34 hinged to the upper support rod 31 also moves downward, the lower support rod 32 hinged to the support plate 34 also moves downward, and the lower sleeve 37 hinged to the lower support rod 32 also moves downward along the first screw rod 28, causing the spring 33 to be compressed. During this process, the lower ends of the upper support rod 31 and the lower support rod 32 also drive the support plate 34 to move away from the first screw rod 28, and the distance between the multiple support plates 34 becomes larger, that is, the support plates 34 expand until the support plates 34 are pressed tightly against the inner pipe wall of the sleeve, thereby installing the sleeve on the fixing frame 12.

[0043] After that, when removing the sleeve from the fixing frame 12, rotate the first nut 29 in the reverse direction to make the first nut 29 move upward along the first screw rod 28. At this time, the compressed spring 33 resumes its original state, causing the upper sleeve 30, the upper support rod 31, the support plate 34, the lower support rod 32, and the lower sleeve 37 to all move upward. During this process, the lower ends of the upper support rod 31 and the lower support rod 32 also drive the support plate 34 to move toward the first screw rod 28, and the distance between the multiple support plates 34 becomes smaller, that is, the support plates 34 contract. Then, the support plates 34 are separated from the inner pipe wall of the sleeve, and at this time, the fixing frame 12 can be removed from the sleeve, or it can be said that the sleeve is removed from the fixing frame 12.

[0044] The spring 33 has two functions: one function is to support the upper sleeve 30, the upper support rod 31, the support plate 34, the lower support rod 32, and the lower sleeve 37. The other function is that when the first nut 29 is rotated downward along the first screw rod 28, the support plates 34 expand, and at the same time, the spring 33 is compressed to store energy. When the first nut 29 is rotated upward along the first screw rod 28, the spring 33 resumes its original state and releases the stored energy. Thus, under the action of the spring 33, the upper sleeve 30, the upper support rod 31, the support plate 34, the lower support rod 32, and the lower sleeve 37 can move upward, and during this process, the support plates 34 contract.

[0045] It can be seen that the fixing frame 12 can detachably install the casing. That is, when the support plate 34 is expanded and abuts against the inner wall of the casing, the casing can be installed on the fixing frame 12. On the contrary, when the support plate 34 contracts and disengages from the inner wall of the casing, the casing can be detached from the fixing frame 12. In this embodiment, the size of the expansion of the support plate 34 can be adjusted according to the inner diameter of the casing, so the fixing frame 12 can be applied to the installation of casings with different inner diameters.

[0046] The support plate 34 is an arc-shaped plate that matches the shape of the inner wall of the casing. When the support plate 34 abuts against the inner wall of the casing, the outer convex arc side of the support plate 34 abuts against the inner wall of the casing, and the inner concave arc side of the support plate 34 is hinged to the lower ends of the upper support rod 31 and the lower support rod 32. In order to prevent the support plate 34 from damaging the casing when abutting against it, a flexible cushion layer 35 can be provided on the outer convex arc side of the support plate 34.

[0047] As Figure 2 shown, the positioning tool for the portable casing of the present utility model, wherein the positioning member 1 includes a first vertical side plate 3, a second vertical side plate 4 and a horizontal plate 2. The first vertical side plate 3 and the second vertical side plate 4 are both arranged vertically. The first vertical side plate 3 is perpendicularly connected to the second vertical side plate 4. A horizontal plate 2 is connected between the tops of the first vertical side plate 3 and the second vertical side plate 4. Angle scale lines are provided on the upper surface of the horizontal plate 2. The center of the angle scale lines is located on the intersection line of the first vertical side plate 3 and the second vertical side plate 4. The position where the horizontal plate 2 intersects the first vertical side plate 3 shows 0 degrees, and the position where the horizontal plate 2 intersects the second vertical side plate 4 shows 90 degrees. The horizontal plate 2 is a sector with a central angle equal to 90 degrees.

[0048] As Figure 1 、 2 As shown in Figures 9, 14, and 15, the connecting member 5 includes a connecting bolt 17. A indicating arrow 18 is perpendicularly fixed on the screw rod of the connecting bolt 17. A sliding groove 8 is provided on the straight ruler 6 along the length direction. The screw rod of the connecting bolt 17 passes through the sliding groove 8 of the straight ruler 6 and is threadedly connected to the upper surface of the horizontal plate 2. The axis of the connecting bolt 17 coincides with the intersection line of the first vertical side plate 3 and the second vertical side plate 4. The indicating arrow 18 is engaged in the sliding groove 8 of the straight ruler 6. When the straight ruler 6 rotates horizontally around the axis of the connecting bolt 17, the angle scale lines can record the angle that the straight ruler 6 rotates relative to the first vertical side plate 3 or the second vertical side plate 4.

[0049] Since the 0-degree mark of the angular scale on the horizontal plate 2 starts from the position where it intersects with the first vertical side plate 3 and the 90-degree mark ends at the position where it intersects with the second vertical side plate 4, and the center of the angular scale is located on the intersection line of the first vertical side plate 3 and the second vertical side plate 4, and the axis of the connecting bolt 17 coincides with the intersection line of the first vertical side plate 3 and the second vertical side plate 4, that is, the connecting bolt 17 is located at the center of the angular scale. Thus, when the straightedge 6 rotates horizontally around the axis of the connecting bolt 17, since the indicating arrow 18 is engaged in the chute 8 of the straightedge 6, the connecting bolt 17 and the indicating arrow 18 thereon rotate synchronously with the straightedge 6. Construction workers can see the size of the angular scale indicated by the indicating arrow 18 from the chute 8 of the straightedge 6, that is, the indicating arrow 18 can point to the angle through which the straightedge 6 has rotated.

[0050] As Figure 1 , 3 -8, 11-13 show, the portable casing positioning tool of the present invention, wherein the first locking member 11 includes a first locking bolt 13 and a first locking nut 15. A first clamping block 14 is vertically fixed on the screw rod of the first locking bolt 13, and the first clamping block 14 abuts against the head of the first locking bolt 13. The upper end of the first screw rod 28 is threadedly connected with a first connecting cylinder 27. The screw rod of the first locking bolt 13 passes through the chute 8 of the straightedge 6 and the first locking nut 15 from top to bottom and is then threadedly connected in the cavity of the first connecting cylinder 27. The straightedge 6 abuts between the head of the first locking bolt 13 and the first locking nut 15, and the first clamping block 14 is engaged in the chute 8 of the straightedge 6.

[0051] When specifically installing the upper end of the first screw rod 28 on the straightedge 6 through the first locking member 11, the screw rod of the first locking bolt 13 is passed through the straightedge 6 from top to bottom, and then the first locking nut 15 is screwed onto the screw rod of the first locking bolt 13. Then, the screw rod of the first locking bolt 13 is screwed into the cavity of the first connecting cylinder 27 (during this process, the first clamping block 14 is not engaged in the chute 8 of the straightedge 6). Then, the first locking member 11 and the fixing frame 12 are rotated relative to the straightedge 6. After the first clamping block 14 and the chute 8 of the straightedge 6 are vertically aligned, the first locking member 11 and the fixing frame 12 are moved downward relative to the straightedge 6 until the first clamping block 14 is engaged in the chute 8 of the straightedge 6. Finally, the first locking nut 15 is further tightened until the straightedge 6 is clamped between the first locking nut 15 and the head of the first locking bolt 13. In this way, the upper end of the first screw rod 28 is installed on the straightedge 6, that is, the fixing frame 12 is installed on the straightedge 6 through the first locking member 11.

[0052] After removing the upper end of the first screw rod 28 from the straight ruler 6, loosen the first locking nut 15. After there is a sufficiently large gap between the first locking nut 15 and the head of the first locking screw rod, move the first locking member 11 and the fixing bracket 12 upward relative to the straight ruler 6 to disengage the first clamping block 14 from the sliding groove 8 of the straight ruler 6. Then, unscrew the screw rod of the first locking bolt 13 from the first connecting cylinder 27, so that the upper end of the first screw rod 28 is removed from the straight ruler 6, that is, the fixing bracket 12 is removed from the straight ruler 6. If you also want to remove the first locking member 11 from the straight ruler 6, just unscrew the first locking nut 15 from the screw rod of the first locking bolt 13, and then remove the first locking bolt 13 from the straight ruler 6.

[0053] After installing the fixing bracket 12 on the straight ruler 6 through the first locking member 11, the first clamping block 14 is engaged in the sliding groove 8 of the straight ruler 6. In this way, the straight ruler 6 is not easy to rotate relative to the screw rod of the first locking bolt 13, and the positioning accuracy of the final sleeve can be guaranteed.

[0054] As Figure 1 、 10 shown, the portable sleeve positioning tool of the present utility model, wherein a support frame 10 is detachably installed on the straight ruler 6 through a second locking member 9. The support frame 10 is located below the straight ruler 6. The support frame 10 includes a second screw rod 21 arranged vertically. A support disc 22 is fixedly provided on the second screw rod 21. A plurality of support long rods 23 all extending downward are hinged on the support disc 22. The upper ends of the plurality of support long rods 23 are evenly spaced along the circumferential direction of the support disc 22 and hinged on the support disc 22. A support sleeve 26 is sleeved on the second screw rod 21 below the support disc 22. There is a gap between the support sleeve 26 and the second screw rod 21. A support short rod 24 is hinged between the support sleeve 26 and each support long rod 23, that is, the two ends of the support short rod 24 are respectively hinged on the support sleeve 26 and the support long rod 23. The upper end of the second screw rod 21 is detachably installed on the straight ruler 6 through the second locking member 9.

[0055] When it is necessary to expand the support frame 10, the support sleeve 26 is moved downward along the second screw rod 21. Then the short support rod 24 changes from an inclined state (one end of the short support rod 24 hinged to the support sleeve 26 is above, and one end hinged to the long support rod 23 is below) to a horizontal state. The lower end of the long support rod 23 swings away from the second screw rod 21, that is, the support frame 10 is expanded. On the contrary, when it is necessary to retract the support frame 10, the support sleeve 26 is moved upward along the second screw rod 21, and the short support rod 24 changes from a horizontal state to an inclined state again. Then the lower end of the long support rod 23 swings towards the second screw rod 21, that is, the support frame 10 is retracted. A baffle 25 can be provided at the bottom end of the second screw rod 21 to prevent the support sleeve 26 from slipping off the second screw rod 21 when moving downward along the second screw rod 21.

[0056] As Figure 1 、 3 -8, 10 show, the portable casing positioning tool of the present utility model, wherein the second locking member 9 includes a second locking bolt and a second locking nut. A second clamping block is vertically and fixedly arranged on the screw rod of the second locking bolt, and the second clamping block abuts against the head of the second locking bolt. The structure of the second locking member 9 is completely the same as that of the first locking member 11. The upper end of the second screw rod 21 is threadedly connected with a second connecting cylinder 19. The screw rod of the second locking bolt sequentially passes through the chute 8 of the straight ruler 6 and the second locking nut from top to bottom and is then threadedly connected in the cavity of the second connecting cylinder 19. The straight ruler 6 abuts between the head of the second locking bolt and the second locking nut. The second clamping block is engaged in the chute 8 of the straight ruler 6. A second nut 20 is threadedly connected to the second screw rod 21 below the second connecting cylinder 19, and the second nut 20 abuts against the second connecting cylinder 19.

[0057] The upper end of the second screw rod 21 is detachably installed on the straight ruler 6 by the second locking member 9 in the same way as the upper end of the first screw rod 28 is detachably installed on the straight ruler 6 by the first locking member 11, that is, the support frame 10 is detachably installed on the straight ruler 6 by the second locking member 9 in the same way as the fixing frame 12 is detachably installed on the straight ruler 6 by the first locking member 11, which will not be elaborated here.

[0058] After the support frame 10 is installed on the straight ruler 6 by the second locking member 9, the second clamping block is engaged in the chute 8 of the straight ruler 6. In this way, the straight ruler 6 is not easy to rotate relative to the screw rod of the second locking bolt, and thus the positioning accuracy of the final casing can be ensured.

[0059] The function of the second nut 20 is to limit the second connecting cylinder 19 and prevent the second connecting cylinder 19 from moving downward along the second screw rod 21.

[0060] The function of the support frame 10 is to support the straight ruler 6 (when supporting, the support frame 10 is in an expanded state), thereby making the positioning tool as a whole stable, and the height of the support frame 10 can be adjusted so that the supported straight ruler 6 can be in a horizontal state. When adjusting the height of the support frame 10, only need to rotate the second connecting cylinder 19 to make the second connecting cylinder 19 move up or down along the second screw rod 21, that is, the height adjustment can be achieved. After the second connecting cylinder 19 moves to the required position, then rotate the second nut 20 to make it abut against the second connecting cylinder 19.

[0061] For the portable casing positioning tool of the present utility model, a plurality of the straight rulers 6 are provided, and the plurality of the straight rulers 6 are connected into a horizontally arranged straight ruler frame through a third locking member 7. One of the straight rulers 6 in the straight ruler frame is detachably installed on the positioning member 1 through a connecting member 5. A fixing frame 12 is detachably installed on at least one of the straight rulers 6 in the straight ruler frame through a first locking member 11. A support frame 10 is detachably installed on at least one of the straight rulers 6 in the straight ruler frame through a second locking member 9. Any two adjacent straight rulers 6 in the straight ruler frame are respectively a first straight ruler and a second straight ruler, and the first straight ruler and the second straight ruler are connected through a third locking member 7.

[0062] As Figure 3 - 8 shown, for the portable casing positioning tool of the present utility model, the third locking member 7 includes a third locking bolt and a third locking nut. A third clamping block is vertically fixed on the screw rod of the third locking bolt, and the third clamping block abuts against the head of the third locking bolt. The structure of the third locking member 7 is completely the same as that of the first locking member 11.

[0063] The screw rod of the third locking bolt sequentially passes through the sliding grooves 8 of the first straight ruler and the second straight ruler and is threadedly connected with the third locking nut. The head of the third locking bolt, the first straight ruler, the second straight ruler and the third locking nut abut against each other, and the third clamping block is clamped in the sliding groove 8 of the first straight ruler. That is to say, when the first straight ruler is above the second straight ruler, the screw rod of the third locking bolt is sequentially passed through the sliding grooves 8 of the first straight ruler and the second straight ruler from top to bottom, and the third clamping block is clamped in the sliding groove 8 of the first straight ruler (the thickness of the third clamping block is not greater than the thickness of the first straight ruler). Then, the third locking nut is screwed onto the third locking bolt until the third locking nut is tightened. At this time, the first straight ruler and the second straight ruler are clamped between the third locking nut and the head of the third locking bolt. Since the third clamping block is clamped in the sliding groove 8 of the first straight ruler, the first straight ruler is not easy to rotate relative to the screw rod of the third locking bolt.

[0064] Of course, when the second straight ruler is located above the first straight ruler, the screw rod of the third locking bolt sequentially passes through the second straight ruler and the chute 8 of the first straight ruler and is threadedly connected to the third locking nut. The head of the third locking bolt, the second straight ruler, the first straight ruler and the third locking nut are in mutual abutment, and the third clamping block is engaged in the chute 8 of the second straight ruler. At this time, the way the third locking member 7 connects the second straight ruler located above and the first straight ruler located below is the same as the way the third locking member 7 connects the first straight ruler located above and the second straight ruler located below, which will not be elaborated here.

[0065] As Figure 1 shown, and in combination with Figure 14 , 15 shown, in this embodiment, there are two straight rulers 6, which are a long straight ruler and a short straight ruler respectively. The length of the long straight ruler is greater than that of the short straight ruler. The length of the long straight ruler is 1.0 m, and the length of the short straight ruler is 0.5 m. Length scale lines are provided on the long side of each straight ruler 6, and angle scale lines are provided at both ends. The long straight ruler is the above-mentioned first straight ruler, and the short straight ruler is the above-mentioned second straight ruler. Of course, it can also be the other way around, that is, the short straight ruler is the above-mentioned first straight ruler, and the long straight ruler is the above-mentioned second straight ruler.

[0066] One end of the long straight ruler is detachably installed on the positioning member 1 through the connecting member 5. The height of the positioning member 1 is 0.5 m. The other end of the long straight ruler is detachably installed with a support frame 10 through the second locking member 9. One end of the short straight ruler is connected to the long straight ruler through the third locking member 7, and the other end of the short straight ruler is detachably installed with a fixing frame 12 through the first locking member 11.

[0067] Two-color identification arrows 16 are provided on the head of the first locking bolt 13, such as red and green. The two-color identification arrows 16 are perpendicular to each other and both pass through the center of the head of the first locking bolt 13. Let one of the two-color identification arrows 16 be arranged corresponding to the first clamping block 14 up and down, such as arranging the red identification arrow 16 corresponding to the first clamping block 14 up and down. In this way, when the first clamping block 14 is engaged in the chute 8 of the straight ruler 6, the construction worker only needs to align the red identification arrow 16 with the chute 8 of the straight ruler 6 to engage the first clamping block 14 in the chute 8 of the straight ruler 6, which is convenient for operation. Similarly, two-color identification arrows 16 are also provided on the heads of the second locking bolt and the third locking bolt.

[0068] As described above, the connecting member 5 includes a connecting bolt 17. The straight ruler 6 can be detachably mounted on the positioning member 1 through the connecting bolt 17. The head of the connecting bolt 17 is also provided with identification arrows 16 of two colors, such as red and green. The two-color identification arrows 16 are perpendicular to each other and both pass through the center of the head of the connecting bolt 17, and one of the color identification arrows 16 is arranged corresponding to the indicating arrow 18 on the screw of the connecting bolt 17 up and down. In this way, it is more convenient for construction workers to read the angle by which the straight ruler 6 has rotated relative to the positioning member 1.

[0069] As Figure 1As shown, during the construction of the kitchen or bathroom, after the floor slab steel bars in the kitchen or bathroom are tied up, the positioning member 1 is fixed at a certain corner of the kitchen or bathroom, and the first vertical side plate 3 and the second vertical side plate 4 of the positioning member 1 are respectively abutted against the two walls at the corner. Then, one end of the long ruler is connected to the horizontal plate 2 of the positioning member 1 through the connecting bolt 17, and the indicating arrow 18 on the connecting bolt 17 is engaged in the sliding groove 8 of the long ruler. According to the construction drawings, determine the installation position of the sleeve relative to the positioning member 1 (such as determining the deflection angle and distance of the sleeve installation position relative to the positioning member 1, that is, the two-dimensional coordinates of the sleeve installation position relative to the positioning member 1 in the horizontal plane can be determined). Then, rotate the long ruler relative to the positioning member 1 so that the long ruler turns a certain angle (the construction worker can read the turned angle through the angle scale line on the positioning member 1). Then, install the support frame 10 at the end of the long ruler away from the positioning member 1 through the second locking member 9, and let the support frame 10 support the long ruler to keep it horizontal. Then, one end of the short ruler is connected to the long ruler through the third locking member 7 (since one end of the short ruler is above the long ruler, the screw rod of the third locking bolt passes through the short ruler and the sliding groove 8 of the long ruler from top to bottom in sequence and is threadedly connected to the third locking nut, and the third locking block is engaged in the sliding groove 8 of the short ruler and the third locking nut is tightened to connect the short ruler to the long ruler). The short ruler and the long ruler together form a ruler frame. Before connection, keep a certain distance between the short ruler and the positioning member 1, and the construction worker can read this distance from the length scale line of the long ruler. Then, install the fixing frame 12 on the short ruler through the first locking member 11, and keep a certain distance between the fixing frame 12 and the long ruler, and the construction worker can read this distance from the length scale line of the short ruler. In this way, through the combined use of the long ruler and the short ruler, the fixing frame 12 deflects a certain angle and distance relative to the positioning member 1 (the angle is read through the angle scale line on the positioning member 1, and the distance is read through the long ruler and the short ruler). At this time, the position of the fixing frame 12 exactly coincides with the sleeve installation position on the construction drawings, that is, the fixing frame 12 reaches the sleeve installation position. Then, install the sleeve on the fixing frame 12, and then firmly fix the four corners of the sleeve on the steel bars with steel nails and binding wires, and then fill the inside of the sleeve with sawdust or paste and seal it with tape up and down. Then, remove the sleeve from the fixing frame 12, and then remove the entire positioning tool from the kitchen or bathroom, and the next step of construction of the floor slab of the kitchen or bathroom can be carried out. The construction worker can move the positioning tool to the kitchen or bathroom on the upper or lower floor for the same operation to install the sleeve on this floor, so that the sleeves of the kitchens or bathrooms on the upper and lower floors can be accurately centered vertically according to the installation positions given in the construction drawings, and the problem that the reserved positions of each sleeve deviate greatly from the dimensions given in the construction drawings due to measurement errors and marking errors during the construction process can be reduced. Thus, it can be seen that the utility model belongs to a tool that is convenient to carry.

[0070] It should be noted that when one end of the long straight ruler is connected to the positioning member 1 through the connecting bolt 17, a small part of the wall above the positioning member 1 can be removed in a small amount, for example, a small pit is dug in the wall to accommodate the connecting bolt 17 and the connecting and positioning member 1 at one end of the long straight ruler, so that the wall will not prevent the connecting bolt 17 from connecting the long straight ruler to the positioning member 1, and will not prevent the long straight ruler from rotating relative to the positioning member 1. When the support frame 10 supports the long straight ruler, a cushion plate can be laid above the steel bars in the kitchen or bathroom, and the support frame 10 is placed on the cushion plate. After the short straight ruler is connected to the long straight ruler, the two form a straight ruler frame, and both the long straight ruler and the short straight ruler are kept in a horizontal state.

[0071] Embodiment 2

[0072] As Figure 16 shown, the difference between this embodiment and Embodiment 1 is that: the numbers of the straight rulers 6, the support frames 10 and the fixing frames 12 are different, and not only are two adjacent straight rulers 6 connected by the third locking member 7, but also by the second locking member 9.

[0073] In this embodiment, a plurality of straight rulers 6 are provided. The plurality of straight rulers 6 are connected by the second locking member 9 and the third locking member 7 to form a horizontally arranged straight ruler frame. One of the straight rulers 6 in the straight ruler frame is detachably installed on the positioning member 1 through the connecting member 5. At least one of the straight rulers 6 in the straight ruler frame is detachably installed with a fixing frame 12 through the first locking member 11. At least one of the straight rulers 6 in the straight ruler frame is detachably installed with a support frame 10 through the second locking member 9. Any two adjacent straight rulers 6 in the straight ruler frame are the first straight ruler and the second straight ruler. At least one pair of the first straight ruler and the second straight ruler are connected by the second locking member 9, and a support frame 10 is connected to the second locking member 9 connecting the first straight ruler and the second straight ruler. The remaining pairs of the first straight ruler and the second straight ruler are connected by the third locking member 7.

[0074] The number of the straight rulers 6 is set to 8, the number of the support frames 10 is set to 2, and the number of the fixing frames 12 is set to 8. The respective numbers of the long straight ruler and the short straight ruler can be determined according to the actual situation among the 8 straight rulers 6. The 8 straight rulers 6 are connected by the second locking member 9 and the third locking member 7 to form a straight ruler frame, and one end of one of the straight rulers 6 is installed on the positioning member 1 through the connecting member 5.

[0075] When two adjacent straight rulers 6 are connected by the second locking member 9, the two adjacent straight rulers 6 are respectively the first straight ruler and the second straight ruler. When the first straight ruler is above the second straight ruler, the screw rod of the second locking bolt passes through the sliding grooves 8 of the first straight ruler and the second straight ruler from top to bottom, and temporarily does not allow the second clamping block to engage in the sliding groove 8 of the first straight ruler. Then, screw the second locking nut onto the second locking bolt. After that, rotate the second locking bolt and screw it onto the second connecting cylinder 19 of the support frame 10. Finally, engage the second clamping block in the sliding groove 8 of the first straight ruler and tighten the second locking nut. In this way, the second locking member 9 can play two roles: one is to connect the first straight ruler and the second straight ruler, and the other is to install the support frame 10 on the straight ruler 6.

[0076] When the second straight ruler is above the first straight ruler, the method of connecting the two straight rulers 6 and the support frame 10 by the second locking member 9 is the same as the connection method when the first straight ruler is above the second straight ruler, which will not be elaborated here.

[0077] In this embodiment, the method of the third locking member 7 connecting the adjacent first straight ruler and the second straight ruler is the same as that of the third locking member 7 connecting the adjacent first straight ruler and the second straight ruler in the first embodiment, which will not be elaborated here.

[0078] In this embodiment, 8 straight rulers 6 are connected by the second locking member 9 and the third locking member 7 to form a horizontally arranged straight ruler frame. Of course, during specific connection, first install the first straight ruler 6 on the positioning member 1 through the connecting member 5, rotate the first straight ruler 6 relative to the positioning member 1 by a certain angle, and then splice the remaining straight rulers 6 with the first straight ruler 6 according to the actual situation to form a horizontally arranged straight ruler frame. The number of support frames 10 can be determined according to the actual situation, and the installation position of the support frame 10 can also be adjusted according to the actual situation, as long as it can support the straight ruler frame and keep it in a horizontal state. Then, the fixing frame 12 can be installed on the straight ruler 6 through the first locking member 11. At this time, the fixing frame 12 has deflected a certain angle and distance relative to the positioning member 1 and comes to the installation position of the sleeve. Next, the sleeve can be installed on the fixing frame 12. The subsequent construction method is the same as that in the first embodiment and will not be elaborated here.

[0079] It can be seen that the numbers of the straight ruler 6, the support frame 10, and the fixing frame 12 in the present utility model can be randomly matched according to the actual situation, as long as the sleeve can be installed at the position shown in the construction drawing. When specifically using the present utility model, the layout path of the positioning tool can be drawn on the construction drawing first to determine the number of straight rulers 6 (how many long straight rulers and short straight rulers are needed), the number of support frames 10, and the number of fixing frames 12. Then, the positioning tool can be installed according to the layout path drawn on the construction drawing.

[0080] It should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "front", "rear", "left", "right", "middle", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0081] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0082] The embodiments described above are only for describing the preferred embodiments of the present utility model, and do not limit the scope of the present utility model. Without departing from the design spirit of the present utility model, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present utility model shall fall within the protection scope determined by the claims of the present utility model.

Claims

1. A portable casing positioning tool, characterized in that: The invention comprises a positioning member, a ruler and a fixing frame, wherein the ruler is a strip plate structure, both ends of the ruler are semicircular, the ruler is detachably mounted on the positioning member through a connecting member, the ruler is arranged in the horizontal direction, an angle scale is provided on the positioning member, the angle scale can record the angle of the ruler rotated in the horizontal direction relative to the positioning member, a fixing frame is detachably mounted on the ruler through a first locking member, the fixing frame is located below the ruler, and the fixing frame is used for detachably mounting a sleeve.

2. The portable casing positioning tool according to claim 1, characterized in that: The fixing frame includes a first screw rod arranged vertically, an upper sleeve and a lower sleeve are respectively mounted on the first screw rod, the upper sleeve is located above the lower sleeve and the two are arranged at intervals, a first nut is threadedly connected to the first screw rod above the upper sleeve, the first nut abuts against the upper sleeve, a spring is installed between the lower ends of the lower sleeve and the first screw rod, a plurality of upper support rods extending downward are hinged on the upper sleeve, and the upper ends of the plurality of upper support rods are hinged on the upper sleeve at intervals along the circumference of the upper sleeve. , a plurality of lower support rods extending downward are hinged on the lower sleeve, the upper ends of the plurality of lower support rods are hinged on the lower sleeve at intervals along the circumference of the lower sleeve, the length of the upper support rod is greater than the length of the lower support rod, the plurality of upper support rods are arranged in one-to-one correspondence with the plurality of lower support rods, the lower ends of the upper support rods and the corresponding lower ends of the lower support rods are hinged on the support plate through the same pin shaft, the support plate is used to detachably install the sleeve, and the upper end of the first screw rod is detachably installed on the ruler through a first locking member.

3. The portable casing positioning tool according to claim 2, characterized in that: The fixing member comprises a first vertical side plate, a second vertical side plate and a horizontal plate, the first vertical side plate and the second vertical side plate are both arranged vertically, the first vertical side plate is vertically connected to the second vertical side plate, and the horizontal plate is connected between the tops of the first vertical side plate and the second vertical side plate, and an angle mark is provided on the upper surface of the horizontal plate, and the center of the angle mark is located at the intersection of the first vertical side plate and the second vertical side plate. The connecting member comprises a connecting bolt, and an indicating arrow is vertically fixed on the screw rod of the connecting bolt, and a sliding groove arranged along the length direction is opened on the ruler, and the screw rod of the connecting bolt passes through the sliding groove of the ruler and is threadedly connected to the upper surface of the horizontal plate, and the axis of the connecting bolt coincides with the intersection of the first vertical side plate and the second vertical side plate, and the indicating arrow is engaged in the sliding groove of the ruler, and when the ruler rotates horizontally around the axis of the connecting bolt, the angle mark can record the angle of rotation of the ruler relative to the first vertical side plate or the second vertical side plate.

4. The portable casing positioning tool according to claim 3, characterized in that: The first locking member includes a first locking bolt and a first locking nut, a first clamping block is vertically fixed on the screw rod of the first locking bolt, the upper end of the first screw rod is threadedly connected to the first connecting tube, the screw rod of the first locking bolt passes through the slide groove of the ruler and the first locking nut from top to bottom in sequence and is threadedly connected in the barrel cavity of the first connecting tube, the ruler abuts between the head of the first locking bolt and the first locking nut, and the first clamping block is engaged in the slide groove of the ruler.

5. The portable casing positioning tool according to claim 4, characterized in that: A support frame is detachably mounted on the ruler via a second locking piece, the support frame is located below the ruler, the support frame includes a second screw rod arranged vertically, a support disc is fixedly mounted on the second screw rod, a plurality of support long rods extending downward are hinged on the support disc, the upper ends of the plurality of support long rods are hinged on the support disc at intervals along the circumference of the support disc, a support sleeve is mounted on the second screw rod below the support disc, a support short rod is hinged between the support sleeve and each support long rod, and the upper end of the second screw rod is detachably mounted on the ruler via a second locking piece.

6. The portable casing positioning tool according to claim 5, characterized in that: The second locking member includes a second locking bolt and a second locking nut, a second clamping block is vertically fixed on the screw rod of the second locking bolt, the upper end of the second screw rod is threadedly connected to the second connecting tube, the screw rod of the second locking bolt passes through the slide groove of the ruler and the second locking nut from top to bottom in sequence and is threadedly connected in the barrel cavity of the second connecting tube, the ruler abuts between the head of the second locking bolt and the second locking nut, the second clamping block is engaged in the slide groove of the ruler, the second screw rod below the second connecting tube is threadedly connected to the second nut, and the second nut abuts against the second connecting tube.

7. The portable casing locating tool according to claim 6, characterized in that: There are multiple rulers, and the multiple rulers are connected to form a horizontally arranged ruler frame through a third locking member. One ruler in the ruler frame is detachably mounted on the positioning member through a connecting member. A fixing frame is detachably mounted on at least one ruler in the ruler frame through a first locking member. A supporting frame is detachably mounted on at least one ruler in the ruler frame through a second locking member. Any two adjacent rulers in the ruler frame are respectively a first ruler and a second ruler, and the first ruler and the second ruler are connected through a third locking member.

8. The portable casing positioning tool according to claim 7, characterized in that: The third locking member includes a third locking bolt and a third locking nut. A third clamping block is vertically fixed on the screw rod of the third locking bolt. The screw of the third locking bolt passes through the sliding grooves of the first ruler and the second ruler in sequence and is threadedly connected with the third locking nut. The head of the third locking bolt, the first ruler, the second ruler and the third locking nut abut against each other, and the third clamping block is engaged in the sliding groove of the first ruler, or The screw rod of the third locking bolt passes through the sliding grooves of the second ruler and the first ruler in sequence and is threadedly connected with the third locking nut. The head of the third locking bolt, the second ruler, the first ruler and the third locking nut abut against each other, and the third clamping block is engaged in the sliding groove of the second ruler.

9. The portable casing positioning tool according to claim 6, characterized in that: The rulers are provided in plurality, and the plurality of rulers are connected to form a horizontally arranged ruler frame via a second locking member and a third locking member; a ruler in the ruler frame is detachably mounted on the positioning member via a connecting member; a fixing frame is detachably mounted on at least one ruler in the ruler frame via a first locking member; a supporting frame is detachably mounted on at least one ruler in the ruler frame via a second locking member; any two adjacent rulers in the ruler frame are a first ruler and a second ruler; at least one pair of the first ruler and the second ruler are connected via a second locking member; a supporting frame is connected to the second locking member connecting the first ruler and the second ruler; and the remaining pairs of the first ruler and the second ruler are connected via the third locking member.

10. The portable casing locating tool according to claim 9, characterized in that: The third locking member includes a third locking bolt and a third locking nut. A third clamping block is vertically fixed on the screw rod of the third locking bolt. The screw of the third locking bolt passes through the sliding grooves of the first ruler and the second ruler in sequence and is threadedly connected with the third locking nut. The head of the third locking bolt, the first ruler, the second ruler and the third locking nut abut against each other, and the third clamping block is engaged in the sliding groove of the first ruler, or The screw rod of the third locking bolt passes through the sliding grooves of the second ruler and the first ruler in sequence and is threadedly connected with the third locking nut. The head of the third locking bolt, the second ruler, the first ruler and the third locking nut abut against each other, and the third clamping block is engaged in the sliding groove of the second ruler.

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