Length detection ruler

Abstract

The utility model discloses a length detection ruler, which relates to the technical field of length measuring rulers, and comprises a measuring ruler, a handle, a fixed side plate, at least one upright post, a movable side plate and a clamping plate hook head, the handle is detachably and fixedly connected with the measuring scale; the fixed side plate is detachably and fixedly connected with the first end of the measuring scale; the stand column is in sliding connection with the measuring scale and can keep the position after sliding, and the stand column is used for stretching into a hole of a workpiece. The movable side plate is in sliding connection with the second end of the measuring scale and can keep the position after sliding so as to limit the maximum error size of the workpiece; the clamping plate hook head is elastically connected with the top of the sliding side plate to limit the minimum error size of the workpiece, the structure is simple, the use is convenient, and the inspection efficiency is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of length measuring ruler technology, and in particular to a length detection ruler. Background Technology

[0002] Currently, vernier calipers are commonly used to measure the length of pipes and the position of holes in pipes. Vernier calipers are also used to measure and inspect the position of holes in some plates. When there are multiple holes, it is necessary to check the position of each hole individually to ensure accuracy. This process exposes problems such as low inspection efficiency and wear on the vernier calipers. Utility Model Content

[0003] The purpose of this invention is to provide a length measuring ruler to solve the problems existing in the prior art. It has a simple structure, is easy to use, and effectively improves inspection efficiency.

[0004] To achieve the above purpose, the present invention provides the following solutions:

[0005] This utility model provides a length measuring ruler, comprising: a measuring ruler, a handle, a fixed side plate, at least one column, a movable side plate, and a locking hook. The measuring ruler is used to contact a workpiece. The handle is detachably fixedly connected to the measuring ruler. The fixed side plate is detachably fixedly connected to a first end of the measuring ruler. The column is slidably connected to the measuring ruler and can maintain its slidable position, and the column is used to extend into a hole in the workpiece. The movable side plate is slidably connected to a second end of the measuring ruler and can maintain its slidable position to limit the maximum error size of the workpiece. The locking hook is elastically connected to the top of the movable side plate to limit the minimum error size of the workpiece.

[0006] Preferably, it further includes at least one upper slider, the top of which is provided with a first threaded hole, the bottom of which is provided with a first screw, the first screw being used to be threadedly connected to the first threaded hole, the measuring scale being provided with a sliding groove, the slider being used to be fitted and fixed in the sliding groove and being able to move along the sliding groove, and rotating the column can fix the slider in the sliding position.

[0007] Preferably, the groove is a T-groove and the slider is a T-shaped slider.

[0008] Preferably, the measuring rod further includes a first sliding rod and a second sliding rod. The measuring rod is provided with a first sliding hole and a second sliding hole. The first sliding rod is used to slide and connect with the first sliding hole and can maintain the position after sliding. The second sliding rod is used to slide and connect with the second sliding hole and can maintain the position after sliding. The bottom of the movable side plate is provided with a second threaded hole and a third threaded hole. A second screw is provided at the end of the first sliding rod extending out of the first sliding hole, and a third screw is provided at the end of the second sliding rod extending out of the second sliding hole. The second screw is used to be threadedly connected to the second threaded hole, and the third screw is used to be threadedly connected to the third threaded hole.

[0009] Preferably, the bottom of the second end of the measuring tape is provided with a fourth threaded hole, and the top of the handle is provided with a fourth screw, which is used to be threadedly connected to the fourth threaded hole.

[0010] Preferably, the device further includes a locking block, a locking screw, and a locking knob. The measuring scale has a fixing groove, and the locking block is placed in the fixing groove. The locking block has a fifth threaded hole, and the locking block has a first contact surface and a second contact surface on both sides. The first contact surface is used to contact and press against the first sliding rod, and the second contact surface is used to contact and press against the second sliding rod. The handle has a handle through hole, and the locking screw is used to pass through the handle through hole and be threadedly connected to the fifth threaded hole of the locking block. The locking knob is fixedly connected to the end of the locking screw away from the locking block. Rotating the locking knob can move the locking block up or down, thereby pressing or releasing the first and second contact surfaces.

[0011] Preferably, it also includes a pin. The movable side plate is provided with a receiving groove on the side away from the fixed side plate. Pin holes are provided on both sides of the middle part of the receiving groove. A pin hole is provided in the middle part of the clamping plate hook. The pin passes through the pin hole and is rotatably connected to the clamping plate hook. The two ends of the pin extend into the corresponding pin holes. A square hole penetrating the movable side plate is provided at the top of the receiving groove. The clamping plate hook is used to extend into the square hole.

[0012] Preferably, the device further includes a first spring, a second spring, and an adjusting bolt. A spring groove is provided at the bottom of the receiving groove. A first end of the first spring is fixedly connected to the spring groove, and the other end is fixedly connected to the top of the card hook. A sixth threaded hole is provided at the top of the card hook. The adjusting bolt is used to thread into the sixth threaded hole and pass through the sixth threaded hole to abut against the receiving groove. The second spring is sleeved on the outside of the adjusting bolt, with one end abutting against the nut of the adjusting bolt and the other end abutting against the side of the card hook away from the receiving groove. Rotating the adjusting bolt can adjust the distance by which the card hook extends out of the square hole.

[0013] Preferably, it further includes a first fixing bolt and a second fixing bolt. The first end of the measuring scale is provided with a seventh threaded hole and an eighth threaded hole. The bottom of the fixed side plate is provided with a first through hole and a second through hole. The first fixing bolt is used to pass through the first through hole and be threadedly connected to the seventh threaded hole. The second fixing bolt is used to pass through the second through hole and be threadedly connected to the eighth threaded hole.

[0014] Preferably, both the fixed side plate and the movable side plate have bevels at their top, and the top surface of the measuring ruler is a V-shaped surface.

[0015] The present invention achieves the following technical advantages over the prior art:

[0016] This utility model provides a length measuring ruler. In use, the handle is held and aligned with a standard workpiece of a standard length, such as a pipe or plate. The workpiece is positioned between the two side plates, with one end resting against the fixed side plate. The position of the column is adjusted so that it extends into the hole of the workpiece. After the ruler is in contact with the workpiece, the workpiece is removed, the column is fixed, and the standard workpiece is placed back in the same position. The movable side plate is adjusted to rest against the other end of the standard workpiece, and then adjusted outward by a certain distance to the maximum allowable length of the workpiece. The clamping hook is then adjusted to control the length of the movable side plate. The difference between this length and the maximum allowable length is the minimum allowable length of the workpiece. The workpiece is then measured. If the workpiece is positioned between the fixed and movable side plates and simultaneously held in place by the clamping hook, the workpiece length meets the requirements. Similarly, if the column can also smoothly pass into the hole of the workpiece, the hole position also meets the requirements. Incorrect length or hole position will prevent the workpiece from being properly clamped within the measuring ruler. This method completes the workpiece inspection. It has a simple structure, is easy to use, and effectively improves inspection efficiency. Attached Figure Description

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 A schematic diagram of the length measuring ruler provided by this utility model;

[0019] Figure 2 This utility model provides a schematic diagram of the elongation and marking of a length measuring ruler.

[0020] Figure 3 An exploded view of the length measuring ruler provided by this utility model;

[0021] Figure 4 A schematic diagram of the structure of the movable side plate in the length measuring ruler provided by this utility model;

[0022] Figure 5 An exploded view of the structure at the locking point of the first and second sliding rods of the length measuring ruler provided by this utility model;

[0023] In the diagram: 1. Locking knob; 101. Locking screw; 2. Handle; 201. Fourth screw; 202. Handle through hole; 203. Locking block; 204. Fifth threaded hole; 205. First contact surface; 3. Measuring ruler; 301. Seventh threaded hole; 302. Slide groove; 303. Fixing groove; 304. Fourth threaded hole; 305. Second sliding hole; 4. Fixing side plate; 401. First through hole; 402. First fixing bolt; 5. Column 502, First screw; 503, slider; 504, first threaded hole; 6, second sliding rod; 601, third screw; 7, movable side plate; 701, third threaded hole; 702, square hole; 703, sixth threaded hole; 704, clamping hook; 705, second spring; 706, adjusting bolt; 707, pin; 708, pin hole; 709, first spring; 710, pin hole; 711, spring groove; 712, receiving groove. Detailed Implementation

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] The purpose of this invention is to provide a length measuring ruler to solve the problems existing in the prior art. It has a simple structure, is easy to use, and effectively improves inspection efficiency.

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] This utility model provides a length measuring ruler, such as Figures 1-5 As shown, it includes: a measuring scale 3, a handle 2, a fixed side plate 4, at least one column 5, a movable side plate 7, and a clamping hook 704. The measuring scale 3 is used to contact the workpiece; the handle 2 is detachably fixedly connected to the measuring scale 3; the fixed side plate 4 is detachably fixedly connected to the first end of the measuring scale 3; the column 5 is slidably connected to the measuring scale 3 and can maintain its slidable position, and the column 5 is used to extend into a hole in the workpiece; the movable side plate 7 is slidably connected to the second end of the measuring scale 3 and can maintain its slidable position to limit the maximum error size of the workpiece; the clamping hook 704 is elastically connected to the top of the movable side plate to limit the minimum error size of the workpiece. In use, the handle 2 is detachably fixedly connected to the measuring scale 3; the fixed side plate 4 is detachably fixedly connected to the first end of the measuring scale 3; the column 5 is slidably connected to the first end of the measuring scale 3 and can maintain its slidable position to limit the maximum error size of the workpiece; the clamping hook 704 is elastically connected to the top of the movable side plate to limit the minimum error size of the workpiece. Align handle 2 with a standard workpiece of standard length, such as a pipe or plate, and position the workpiece between the two side plates. Place one end of the workpiece against the fixed side plate 4. Adjust the position of the column 5 so that it extends into the hole of the workpiece. After the measuring scale 3 is in contact with the workpiece, remove the workpiece, fix the column 5, and place the workpiece back in the same position. Adjust the movable side plate 7 to rest against the other end of the workpiece, and then adjust it outwards by a certain distance, i.e., the maximum allowable length of the workpiece. Then adjust the clamping hook 704 to control the length of the movable side plate 7. The difference between this length and the maximum allowable length is the minimum allowable length of the workpiece. Then measure the workpiece. If the workpiece is positioned between the fixed side plate 4 and the movable side plate 7 and simultaneously held in place by the clamping hook 704, the workpiece length meets the requirements. If the column 5 can also smoothly pass into the hole of the workpiece, the hole position also meets the requirements. If either the length or the hole position is incorrect, the workpiece cannot be held within the length measuring scale. This completes the workpiece inspection. The structure is simple, easy to use, and effectively improves inspection efficiency.

[0028] In a preferred embodiment, the length measuring ruler further includes at least one upper slider 503. The top of the slider 503 is provided with a first threaded hole 504, and the bottom of the column 5 is provided with a first screw 502. The first screw 502 is used to be threadedly connected to the first threaded hole 504. The measuring ruler 3 is provided with a slide groove 302. The slider 503 is used to be fitted and fixed in the slide groove 302 and can move along the slide groove 302. Rotating the column 5 can fix the slider 503 in the position after sliding. The structure is simple and easy to use.

[0029] In a preferred embodiment, the groove 302 is a T-groove and the slider 503 is a T-shaped slider 503. The structure is simple and can effectively ensure the stability of the slider 503 sliding in the groove 302.

[0030] In a preferred embodiment, the length measuring ruler further includes a first sliding rod and a second sliding rod 6. The measuring ruler 3 is provided with a first sliding hole and a second sliding hole 305. The first sliding rod is used to slide and connect with the first sliding hole and can maintain the position after sliding. The second sliding rod 6 is used to slide and connect with the second sliding hole 305 and can maintain the position after sliding. The bottom of the movable side plate 7 is provided with a second threaded hole and a third threaded hole 701. A second screw is provided at the end of the first sliding rod that extends out of the first sliding hole. A third screw 601 is provided at the end of the second sliding rod that extends out of the second sliding hole 305. The second screw is used to be threaded to the second threaded hole. The third screw 601 is used to be threaded to the third threaded hole 701. The structure is simple and easy to use, and it effectively ensures the stability of the movable side plate 7 when sliding.

[0031] In a preferred embodiment, a fourth threaded hole 304 is provided at the bottom of the second end of the measuring ruler 3, and a fourth screw 201 is provided at the top of the handle 2. The fourth screw 201 is used to be threadedly connected to the fourth threaded hole 304, which is a simple structure.

[0032] In a preferred embodiment, the length measuring ruler further includes a locking block 203, a locking screw 101, and a locking knob 1. The measuring ruler 3 is provided with a fixing groove 303, and the locking block 203 is used to be placed in the fixing groove 303. The locking block 203 is provided with a fifth threaded hole 204. The two sides of the locking block 203 are provided with a first contact surface 205 and a second contact surface. The first contact surface 205 is used to contact and press against the first sliding rod, and the second contact surface is used to contact and press against the second sliding rod 6. The handle 2 is provided with a handle through hole 202, and the locking screw 101 is used to pass through the handle through hole 202 and be threadedly connected to the fifth threaded hole 204 of the locking block 203. The locking knob 1 is also provided. 1. A fixed connection is made to the end of the locking screw 101 away from the locking block 203. Rotating the locking knob 1 can move the locking block 203 up or down, thereby pressing or releasing the first sliding rod and the second sliding rod 6 by the first contact surface 205 and the second contact surface. The structure is simple and easy to use. By rotating the locking knob 1, the locking screw 101 can rotate in the fifth threaded hole 204, thereby driving the locking block 203 to rise or fall. During the descent of the locking block 203, the first contact surface 205 and the second contact surface on both sides of the locking block 203 can apply pressure to the first sliding rod and the second sliding rod 6 respectively, thereby restricting the movement of the first sliding rod and the second sliding rod 6.

[0033] In a preferred embodiment, the length measuring ruler further includes a pin 707. A receiving groove 712 is provided on the side of the movable side plate 7 away from the fixed side plate 4. Pin holes 710 are provided on both sides of the middle part of the receiving groove 712. A pin hole 708 is provided in the middle part of the clamping hook head 704. The pin 707 passes through the pin hole 708 and is rotatably connected to the clamping hook head 704. Both ends of the pin 707 extend into the corresponding pin holes 710. A square hole 702 penetrating the movable side plate 7 is provided at the top of the receiving groove 712. The clamping hook head 704 is used to extend into the square hole 702. The structure is simple.

[0034] In a preferred embodiment, the length measuring ruler further includes a first spring 709, a second spring 705, and an adjusting bolt 706. A spring groove 711 is provided at the bottom of the receiving groove 712. The first end of the first spring 709 is fixedly connected to the spring groove 711, and the other end is fixedly connected to the top of the clamping hook 704. A sixth threaded hole 703 is provided at the top of the clamping hook 704. The adjusting bolt 706 is threaded to the sixth threaded hole 703 and passes through the sixth threaded hole 703 to abut against the receiving groove 712. The second spring 705 is sleeved on the outside of the adjusting bolt, with one end abutting against the nut of the adjusting bolt and the other end abutting against the side of the clamping hook 704 away from the receiving groove 712. Rotating the adjusting bolt can adjust the distance the clamping hook 704 extends out of the square hole 702. The structure is simple and easy to use; the length of the clamping hook 704 extending out of the square hole 702 can be adjusted by rotating the adjusting bolt.

[0035] In a preferred embodiment, the length measuring ruler further includes a first fixing bolt 402 and a second fixing bolt. The first end of the measuring ruler 3 is provided with a seventh threaded hole 301 and an eighth threaded hole. The bottom of the fixed side plate 4 is provided with a first through hole 401 and a second through hole. The first fixing bolt 402 is used to pass through the first through hole 401 and be threadedly connected to the seventh threaded hole 301. The second fixing bolt is used to pass through the second through hole and be threadedly connected to the eighth threaded hole. The structure is simple.

[0036] In a preferred embodiment, both the fixed side plate 4 and the movable side plate 7 are provided with bevels at their tops, and the top surface of the measuring ruler 3 is a V-shaped surface, which is simple in structure and easy to use.

[0037] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A length measuring ruler, characterized in that: include: A measuring ruler, which is used to contact the workpiece; A handle, which is detachably and fixedly connected to the measuring scale; A fixed side plate is provided, which is detachably and fixedly connected to the first end of the measuring tape. At least one column, the column being slidably connected to the measuring tape and capable of maintaining its slidable position, and the column being used to extend into a hole in the workpiece; A movable side plate, which is slidably connected to the second end of the measuring scale and can maintain its position after sliding to limit the maximum error size of the workpiece; as well as A clamping hook is elastically connected to the top of the movable side plate to limit the minimum error size of the workpiece.

2. The length measuring ruler according to claim 1, characterized in that: It also includes at least one upper slider, the top of which is provided with a first threaded hole, and the bottom of the column is provided with a first screw. The first screw is used to be threadedly connected to the first threaded hole. The measuring scale is provided with a sliding groove. The slider is used to be fitted and fixed in the sliding groove and can move along the sliding groove. Rotating the column can fix the slider in the position after sliding.

3. The length measuring ruler according to claim 2, characterized in that: The groove is a T-shaped groove, and the slider is a T-shaped slider.

4. The length measuring ruler according to claim 3, characterized in that: It also includes a first sliding rod and a second sliding rod. The measuring scale is provided with a first sliding hole and a second sliding hole. The first sliding rod is used to slide and connect with the first sliding hole and can maintain the position after sliding. The second sliding rod is used to slide and connect with the second sliding hole and can maintain the position after sliding. The bottom of the movable side plate is provided with a second threaded hole and a third threaded hole. A second screw is provided at the end of the first sliding rod that extends out of the first sliding hole, and a third screw is provided at the end of the second sliding rod that extends out of the second sliding hole. The second screw is used to be threadedly connected to the second threaded hole, and the third screw is used to be threadedly connected to the third threaded hole.

5. The length measuring ruler according to claim 4, characterized in that: The bottom of the second end of the measuring tape is provided with a fourth threaded hole, and the top of the handle is provided with a fourth screw, which is used to be threadedly connected to the fourth threaded hole.

6. The length measuring ruler according to claim 5, characterized in that: It also includes a locking block, a locking screw, and a locking knob. The measuring scale has a fixing groove, and the locking block is placed in the fixing groove. The locking block has a fifth threaded hole, and the locking block has a first contact surface and a second contact surface on both sides. The first contact surface is used to contact and press against the first sliding rod, and the second contact surface is used to contact and press against the second sliding rod. The handle has a handle through hole, and the locking screw is used to pass through the handle through hole and be threadedly connected to the fifth threaded hole of the locking block. The locking knob is fixedly connected to the end of the locking screw away from the locking block. Rotating the locking knob can move the locking block up or down, thereby pressing or releasing the first and second contact surfaces.

7. The length measuring ruler according to claim 6, characterized in that: It also includes a pin. The movable side plate is provided with a receiving groove on the side away from the fixed side plate. Pin holes are provided on both sides of the middle part of the receiving groove. The center of the clamping hook is provided with a pin hole. The pin passes through the pin hole and is rotatably connected to the clamping hook. The two ends of the pin extend into the corresponding pin holes. The top of the receiving groove is provided with a square hole that penetrates the movable side plate. The clamping hook is used to extend into the square hole.

8. The length measuring ruler according to claim 7, characterized in that: It also includes a first spring, a second spring, and an adjusting bolt. The bottom of the receiving groove is provided with a spring groove. The first end of the first spring is fixedly connected to the spring groove, and the other end is fixedly connected to the top of the card hook. The top of the card hook is provided with a sixth threaded hole. The adjusting bolt is used to thread into the sixth threaded hole and pass through the sixth threaded hole to abut against the receiving groove. The second spring is sleeved on the outside of the adjusting bolt, and one end of the second spring abuts against the nut of the adjusting bolt, and the other end abuts against the side of the card hook away from the receiving groove. Rotating the adjusting bolt can adjust the distance by which the card hook extends out of the square hole.

9. The length measuring ruler according to claim 8, characterized in that: It also includes a first fixing bolt and a second fixing bolt. The first end of the measuring scale is provided with a seventh threaded hole and an eighth threaded hole. The bottom of the fixed side plate is provided with a first through hole and a second through hole. The first fixing bolt is used to pass through the first through hole and be threadedly connected to the seventh threaded hole. The second fixing bolt is used to pass through the second through hole and be threadedly connected to the eighth threaded hole.

10. The length measuring ruler according to claim 9, characterized in that: Both the fixed side plate and the movable side plate have bevels at their tops, and the top surface of the measuring ruler is a V-shaped surface.

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