Engineering cost diameter measuring device suitable for large pipe fitting

Abstract

The utility model relates to the technical field of measuring engineering, in particular to an engineering cost diameter measuring device suitable for a large pipe fitting, which comprises a shell and a measuring mechanism for measuring the diameter of the pipe fitting, and the measuring mechanism comprises a pair of measuring racks arranged oppositely and a driving mechanism for driving the measuring racks to be close to and far away from each other. The driving mechanism comprises a gear and a locking mechanism used for fixing the gear. The engineering cost diameter measuring device further comprises a lifting folding mechanism used for conducting sliding adjustment on the shell in the vertical direction. According to the technical scheme, the driving mechanism is arranged to drive the pair of measuring racks which are oppositely arranged to move away from and close to each other on the same horizontal plane so as to measure different pipe fittings, the outer diameters of the pipe fittings can be measured while measurement is carried out, and the measuring ruler can be fixed during measurement, so that the measurement accuracy is improved. And the work of one-hand operation and continuous measurement data recording is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of measurement engineering, in particular to an engineering cost diameter measuring device suitable for large pipe fittings. Background Art

[0002] With the continuous development of industrial technology, large pipe fittings are increasingly used in various fields, and their dimensional accuracy and quality control are particularly important. Especially in the petroleum, chemical, metallurgical and other industries, the diameter measurement of large pipe fittings is an indispensable part of the production process, and a diameter measuring device is required when measuring the diameter of large pipe fittings.

[0003] A Chinese patent (CN216645174U) discloses a diameter measuring device for engineering cost. The handle can be pushed against the object to be measured to drive the vertical clamp rod to slide backward to clamp the head end of the tape measure in the measuring state after a circle, which is convenient for reading and recording. This allows the positioning and maintenance of the entire device and the tape measure to be completed with one hand during the measurement operation. Compared with the traditional measuring device that requires the cooperation of both hands to position and maintain the entire device and the tape measure, it can avoid the simultaneous occupation of both hands so that one hand can be freed to record the measurement data, which is convenient to use.

[0004] However, in actual use of the above structure, the pipe needs to be placed between the vertical clamping rods first, and then it is fixed by squeezing before measurement can be carried out. After fixation, the tape measure needs to be wrapped around the pipe for one circle before measurement can be carried out. On the one hand, it increases the cumbersomeness of the operation. On the other hand, when measuring with the tape measure, the measurement result may be inaccurate due to the deviation of the winding position, and it is not convenient to measure the outer diameter or the inner diameter of the pipe at the same time. Utility Model Content

[0005] In view of the above problems, an engineering cost diameter measuring device suitable for large pipe fittings is provided, which solves the problems of measurement position deviation and inconvenience in simultaneously measuring the inner diameter and outer diameter of the pipe by setting a measuring rack and a folding measuring rod.

[0006] In order to solve the problems of the prior art, the utility model provides an engineering cost diameter measuring device suitable for large pipe fittings, including a shell and a measuring mechanism for measuring the diameter of the pipe fitting, the measuring mechanism including a pair of measuring racks arranged opposite to each other and a driving mechanism for driving the measuring racks to move relatively close and relatively away, the driving mechanism including a gear and a locking mechanism for fixing the gear, and the engineering cost diameter measuring device also includes a lifting and folding mechanism for adjusting the vertical sliding direction of the shell.

[0007] Preferably, the measuring mechanism further comprises a folding measuring rod and an extending rod; the folding measuring rod is rotatably mounted on the end of the measuring rack; the extending rod is inside the folding measuring rod and slidably cooperates with the folding measuring rod.

[0008] Preferably, the measuring mechanism further comprises a tension spring; the tension spring is arranged inside the folding measuring rod, and two ends of the tension spring are respectively fixed to the ends of the folding measuring rod and the extending rod.

[0009] Preferably, the driving mechanism comprises a transmission rod; the transmission rod is rotatably arranged in the housing and located in the middle of the measuring ruler; the gear is coaxially fixed with the transmission rod, and the gear is arranged outside the transmission rod and meshes with the measuring rack.

[0010] Preferably, the locking mechanism comprises a clamping block and a guide rod; the clamping block is slidably arranged on the housing and is located above the transmission rod; the guide rod is arranged on the housing and slidably cooperates with the clamping block.

[0011] Preferably, the lifting and folding mechanism comprises a positioning rod and a sliding sleeve; the positioning rod is arranged below the shell; and the sliding sleeve is slidably arranged outside the positioning rod and is located below the shell.

[0012] Preferably, the lifting and folding mechanism also includes a folding support rod, a hinged rod and a support block; the folding support rod is rotatably arranged below the shell; the hinged rod is arranged outside the sliding sleeve, and one end of the hinged rod is rotatably connected to the end of the folding support rod; the support block is rotatably installed at one end of the folding support rod.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The utility model can measure the inner diameter and outer diameter of the pipe fitting at the same time by providing a measuring rack and a folding measuring rod, which reduces the tediousness of repeated operations on the one hand, and is convenient for storing the measuring rack and the measuring rod to reduce the occupied space on the other hand, and can also measure the inner diameter and outer diameter of the pipe fitting at the same time.

[0015] 2. The utility model provides a locking mechanism to fix the pipe when measuring the inner diameter and outer diameter, which is convenient for operators to record the measurements.

[0016] 3. The utility model provides a lifting and folding mechanism to stably support the device and prevent the device from tipping over. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The present invention is a three-dimensional structural diagram from the first perspective of an engineering cost diameter measuring device suitable for large pipe fittings.

[0018] Figure 2 It is a three-dimensional structural diagram of the measuring mechanism of an engineering cost diameter measuring device suitable for large pipe fittings in the unfolded measuring state.

[0019] Figure 3 It is a front view structural diagram of an engineering cost diameter measuring device suitable for large pipe fittings.

[0020] Figure 4 The present invention is a three-dimensional structural diagram of the measuring mechanism of an engineering cost diameter measuring device suitable for large pipe fittings.

[0021] Figure 5 The present invention is a three-dimensional structural diagram of a measuring device suitable for an engineering cost diameter measuring device for large pipe fittings in a folded and stored state.

[0022] Figure 6 It is a three-dimensional structural diagram of the gears and folding measuring rod of an engineering cost diameter measuring device suitable for large pipe fittings.

[0023] Figure 7 The present invention is a three-dimensional structural diagram of a folding support rod of an engineering cost diameter measuring device suitable for large pipe fittings.

[0024] Figure 8 The present invention is a structural diagram of a measuring rack and a folding measuring rod of an engineering cost diameter measuring device suitable for large pipe fittings in the unfolded measuring state.

[0025] Fig. 9 The present invention is a three-dimensional structural diagram of a folding measuring rod and an extending rod of a front view cross-section measuring ruler of an engineering cost diameter measuring device suitable for large pipe fittings.

[0026] Fig.10 The present invention is a three-dimensional structural diagram of a clamping block and a clamping slot of an engineering cost diameter measuring device suitable for large pipe fittings.

[0027] Fig.11 It is a diameter measuring device suitable for large pipes. Figure 5 Enlarged structural diagram at point A in the middle.

[0028] The numbers in the figure are: 1. shell; 2. measuring mechanism; 21. measuring rack; 22. folding measuring rod; 23. extending rod; 24. stretching spring; 25. sliding rod; 26. reset spring; 28. sliding block; 29. ​​measuring ruler; 3. driving mechanism; 31. gear; 32. transmission rod; 33. slot; 4. locking mechanism; 41. block; 42. guide rod; 43. telescopic spring; 5. lifting and folding mechanism; 51. positioning rod; 52. sliding sleeve; 53. folding support rod; 54. hinged rod; 55. support block. DETAILED DESCRIPTION

[0029] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0030] See also Figure 1 and Fig.11As shown, a construction cost diameter measuring device suitable for large pipe fittings includes a housing 1 and a measuring mechanism 2 for measuring the diameter of the pipe fitting, the measuring mechanism 2 includes a pair of measuring racks 21 arranged opposite to each other and a driving mechanism 3 for driving the measuring racks 21 to be relatively close to and relatively far away from each other, the driving mechanism 3 includes a gear 31 and a locking mechanism 4 for fixing the gear 31, the construction cost diameter measuring device also includes a lifting and folding mechanism 5 for adjusting the housing 1 in a vertical direction, the measuring racks 21 have a pair and are respectively slidably arranged in the housing 1, one end of the pair of measuring racks 21 is located on the outside of the housing 1 and is provided with an L-shaped block, the measuring ruler 29 has a pair and is respectively slidably arranged in the housing 1, and the pair of L-shaped blocks are located on the same horizontal plane for more accurate measurement. Measurement, a pair of measuring racks 21 are each provided with a sliding rod 25 installed and fixed at the inner end of the shell 1, the sliding rod 25 and the measuring rack 21 are slidably matched, the outer sleeve of the sliding rod 25 is provided with a reset spring 26 fixed to the sliding rod 25 and the inner end of the measuring rack 21, the reset spring 26 is used to restore the measuring rack 21 after measurement, reduce frequent pulling and pulling, and indirectly improve the service life of the measuring rack 21, a travel groove 27 is opened on the shell 1, a sliding block 28 fixed to the end of the measuring rack 21 is slidably arranged in the travel groove 27, and a measuring ruler 29 slidably matched with the sliding block 28 is provided on the shell 1, and the moving distance of the sliding block 28 is recorded by the measuring ruler 29, so as to facilitate real-time observation of the measurement data.

[0031] The driving mechanism 3 drives a pair of measuring racks 21 disposed opposite to each other to move relatively away from and relatively close to each other on the same horizontal plane so as to measure different pipe fittings, and at the same time, the outer diameter of the pipe fitting can also be measured.

[0032] See also Figure 3 and Figure 5 As shown, the measuring mechanism 2 also includes a foldable measuring rod 22 and an extending rod 23; the foldable measuring rod 22 is rotatably mounted on the end of the measuring rack 21; the extending rod 23 is in the foldable measuring rod 22 and slidably cooperates with the foldable measuring rod 22, and a limiting groove for the extending rod 23 to slide is provided in the foldable measuring rod 22, and scales are engraved on both the foldable measuring rod 22 and the extending rod 23, one end of the extending rod 23 is provided with an L-shaped block, and the L-shaped block is used to press against the outer diameter of the pipe fitting, and one end of the measuring rack 21 is provided with a limiting block for limiting the tilt distance of the foldable measuring rod 22 to prevent loosening and tilting during measurement and affecting the measurement accuracy.

[0033] When the outer diameter of the pipe needs to be accurately measured, the measuring rack 21 extends out of the outer side of the shell 1 through the driving mechanism 3. At this time, the operator can unfold the folding measuring rod 22 at a certain angle to adapt to pipes of different sizes. When encountering a pipe with a larger diameter, it is only necessary to easily pull the extending rod 23 so that it can be tightly pressed against the outer diameter of the pipe, thereby ensuring the accuracy of the measurement, which can greatly improve the work efficiency and accuracy of pipe measurement.

[0034] See also Figure 7 and Figure 8 As shown, the measuring mechanism 2 further includes a tension spring 24 ; the tension spring 24 is arranged inside the folding measuring rod 22 , and both ends of the tension spring 24 are respectively fixed to the ends of the folding measuring rod 22 and the extending rod 23 .

[0035] When measuring pipe fittings, the tension spring 24 is usually connected to the extension rod 23 and is in a pre-tensioned state. When the extension rod 23 is extended for measurement, the spring is further stretched; when the measurement is completed, the spring releases its stored elastic potential energy, driving the extension rod 23 to automatically retract into the folded measuring rod 22.

[0036] See also Figure 2 and Figure 5 As shown, the driving mechanism 3 includes a transmission rod 32; the transmission rod 32 is rotatably arranged in the housing 1 and is located in the middle of the measuring ruler 29; the gear 31 is coaxially fixed with the transmission rod 32, the gear 31 is arranged outside the transmission rod 32 and meshes with the measuring rack 21, the gear 31 is coaxially fixed with the transmission rod 32, one end of the transmission rod 32 extends out of the outside of the housing 1 and is provided with a rotating handle, the rotating handle is used to transmit the transmission rod 32, and a card slot 33 is opened on the outside of the transmission rod 32.

[0037] When a pair of measuring racks 21 are driven to slide horizontally and linearly, the transmission rod 32 can be rotated by holding the rotating handle. When the transmission rod 32 rotates, it can transmit the external gear 31, and then the meshing measuring rack 21 can be moved horizontally and linearly.

[0038] See also Figure 4 and Fig.11 As shown, the locking mechanism 4 includes a block 41 and a guide rod 42; the block 41 is slidably arranged on the housing 1 and is located above the transmission rod 32; the guide rod 42 is arranged on the housing 1 and slidably cooperates with the block 41, and a telescopic spring 43 is arranged on the outside of the guide rod 42, and the two ends of the telescopic spring 43 are respectively fixed to the ends of the guide rod 42 and the block 41. The function of the telescopic spring 43 is to push the block 41 to move along the guide rod 42 until the block 41 is fixed in the slot 33 outside the transmission rod 32. The block 41 is used to limit the rotation of the transmission rod 32, and an extension block is provided on the block 41 for pulling the block 41 out of the slot of the transmission rod 32.

[0039] When measuring and rotating the transmission rod 32, first hold the extension block and then pull the extension block upward, so that the clamping block 41 can lose the restriction on the clamping slot 33 provided on the transmission rod 32, and the transmission rod 32 can be rotated at this time. When the extension block is released, the clamping block 41 can be driven to slide along the guide rod 42 in the vertical direction close to the clamping slot 33 under the action of the telescopic spring 43, and then the transmission rod 32 is clamped to prevent the measurement accuracy from being affected by the measurement personnel accidentally touching the transmission rod 32.

[0040] See also Figure 3 and Figure 4 As shown, the lifting and folding mechanism 5 includes a positioning rod 51 and a sliding sleeve 52; the positioning rod 51 is arranged below the shell 1; the sliding sleeve 52 is slidably arranged outside the positioning rod 51 and is located below the shell 1, and a limiting disk is arranged at the bottom end of the positioning rod 51, which is used to provide stable support for the shell 1 in the storage state, and a locking screw is arranged on the internal thread of the sliding sleeve 52, which is used to limit the vertical sliding of the sliding sleeve 52.

[0041] During measurement, the housing 1 needs to be stably supported, and the sliding sleeve 52 is slid vertically downward along the positioning rod 51 , so that the sliding sleeve 52 can be moved downward.

[0042] See also Figure 4 and Figure 5 As shown, the lifting and folding mechanism 5 also includes a folding support rod 53, a hinged rod 54 and a support block 55; the folding support rod 53 is rotatably arranged below the shell 1; the hinged rod 54 is arranged outside the sliding sleeve 52, and one end of the hinged rod 54 is rotatably connected to the end of the folding support rod 53; the support block 55 is rotatably installed at one end of the folding support rod 53, and there are four folding support rods 53 and hinged rods 54 in a circular array along the sliding sleeve 52, and the support block 55 is rotatably arranged on the folding support rod 53 through a damping rod.

[0043] When the sliding sleeve 52 moves downward, the hinged rod 54 on the sliding sleeve 52 can be rotated to make the folding support rod 53 move downward and expand, and then the shell 1 can be synchronously expanded through the four folding support rods 53. After the expansion, the shell can be adjusted by rotating the support block 55, which is convenient for adapting to different ground environments for measurement and improving the applicability of the support.

[0044] The above embodiments only express one or several implementation methods of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the attached claims.

Claims

1. A diameter measuring device for engineering cost of large pipe fittings, comprising a housing (1) and a measuring mechanism (2) for measuring the diameter of the pipe fitting, wherein the measuring mechanism (2) comprises a pair of measuring racks (21) arranged opposite to each other and a driving mechanism (3) for driving the measuring racks (21) to move relatively closer or farther away; characterized in that: The driving mechanism (3) comprises a gear (31) and a locking mechanism (4) for fixing the gear (31), and the engineering cost diameter measuring device further comprises a lifting and folding mechanism (5) for adjusting the vertical sliding direction of the housing (1).

2. The engineering cost diameter measuring device suitable for large pipe fittings according to claim 1, characterized in that: The measuring mechanism (2) also comprises a folding measuring rod (22) and an extending rod (23); the folding measuring rod (22) is rotatably mounted on the end of the measuring rack (21); the extending rod (23) is inside the folding measuring rod (22) and is slidably matched with the folding measuring rod (22).

3. The engineering cost diameter measuring device suitable for large pipe fittings according to claim 1, characterized in that: The measuring mechanism (2) also includes a tension spring (24); the tension spring (24) is arranged inside the folding measuring rod (22), and the two ends of the tension spring (24) are respectively fixed to the ends of the folding measuring rod (22) and the extension rod (23).

4. The engineering cost diameter measuring device suitable for large pipe fittings according to claim 1, characterized in that: The driving mechanism (3) comprises a transmission rod (32); the transmission rod (32) is rotatably arranged in the housing (1) and is located in the middle of the measuring ruler (29); a gear (31) is coaxially fixed with the transmission rod (32), and the gear (31) is arranged outside the transmission rod (32) and meshes with the measuring rack (21).

5. The engineering cost diameter measuring device suitable for large pipe fittings according to claim 1, characterized in that: The locking mechanism (4) comprises a clamping block (41) and a guide rod (42); the clamping block (41) is slidably arranged on the housing (1) and is located above the transmission rod (32); the guide rod (42) is arranged on the housing (1) and slidably cooperates with the clamping block (41).

6. The engineering cost diameter measuring device suitable for large pipe fittings according to claim 1, characterized in that: The lifting and folding mechanism (5) comprises a positioning rod (51) and a sliding sleeve (52); the positioning rod (51) is arranged below the housing (1); and the sliding sleeve (52) is slidably arranged outside the positioning rod (51) and is located below the housing (1).

7. The engineering cost diameter measuring device suitable for large pipes according to claim 1, characterized in that: The lifting and folding mechanism (5) further comprises a folding support rod (53), a hinge rod (54) and a support block (55); the folding support rod (53) is rotatably arranged below the housing (1); the hinge rod (54) is arranged outside the sliding sleeve (52), and one end of the hinge rod (54) is rotatably connected to the end of the folding support rod (53); and the support block (55) is rotatably mounted on one end of the folding support rod (53).

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