Deep hole measuring device

Abstract

The utility model discloses a deep hole measuring device, which relates to the technical field of deep hole diameter measuring devices, wherein the deep hole measuring device is used to measure the diameter of a hole to be measured in a deep hole, and the deep hole measuring device comprises: a bracket; a scale rod, the scale rod can be lifted and arranged on the bracket; a movable plate, the movable plate is connected with the scale rod; and a plurality of measuring rods, the plurality of measuring rods are arranged along the circumference of the bracket, each of the measuring rods is hinged to the bracket, the movable plate can be lifted and sleeved on the outer circumference of the plurality of measuring rods, and the measuring rods also include a measuring head; the technical effect of the technical solution provided by the utility model is that a user manually drives the bracket to drive the scale rod and the movable plate to perform lifting and lowering movements, and the angle between the plurality of measuring rods and the scale rod is adjusted by the lifting and lowering movements of the movable plate, so that the measuring head abuts against the inner wall of the hole to be measured, thereby allowing the user to read the diameter of the inner wall of the hole to be measured through the scale rod.

Description

Technical Field

[0001] The utility model relates to the technical field of deep hole diameter measuring devices, in particular to a deep hole measuring device. Background Art

[0002] Deep hole parts are widely used in the manufacturing industry, and they play a vital role in various types of equipment. Deep hole parts are characterized by complex internal structures, usually containing stepped holes with larger diameters. These stepped holes have a vital impact on the performance and quality of the product, so accurate measurement of the step hole diameter is particularly important.

[0003] When the internal space of a deep hole is limited, traditional measuring tools and methods are difficult to apply directly. The shape and structure of deep hole parts are complex and changeable, which can easily lead to errors in the measurement results. The existing traditional inner diameter measurement methods mainly rely on tools such as calipers and callipers. The operation process of this type of measurement method is relatively cumbersome, the measurement accuracy is difficult to guarantee, and it is greatly affected by human factors. Utility Model Content

[0004] The main purpose of the utility model is to provide a deep hole measuring device, which is intended to conveniently measure the diameter of a hole to be measured in a deep hole.

[0005] In order to achieve the above-mentioned purpose, the deep hole measuring device proposed in the utility model is used to measure the diameter of the hole to be measured in the deep hole, and the deep hole measuring device comprises:

[0006] Bracket;

[0007] A scale rod, the scale rod being liftably disposed on the bracket;

[0008] a movable plate connected to the scale rod; and

[0009] A plurality of measuring rods are arranged along the circumference of the bracket, each of the measuring rods is hinged to the bracket, the movable plate is liftably mounted on the outer circumference of the plurality of measuring rods, the measuring rods also include a measuring head, the axis of the measuring head intersects with the axis of the measuring rod.

[0010] In one embodiment, the bracket includes a handle and a mounting portion, the scale rod is liftably disposed in the handle, the mounting portion is sleeved on the outer circumference of the scale rod, and each of the measuring rods is hinged to the mounting portion.

[0011] In one embodiment, the handle is threadedly connected to the scale rod.

[0012] In one embodiment, the mounting portion is provided with a plurality of hinged portions, the plurality of hinged portions are arranged along the circumference of the mounting portion, and the plurality of measuring rods are hinged to the plurality of hinged portions one by one, so that the plurality of measuring rods are hinged to the mounting portion.

[0013] In one embodiment, the number of the plurality of measuring rods is set to three, the three measuring rods are arranged at intervals along the circumference of the mounting portion, and each of the measuring rods is hinged to the mounting portion.

[0014] In one embodiment, the measuring rod includes a rod body and a bending portion, the bending portion is provided at an end of the rod body away from the mounting portion, and the measuring head is detachably mounted on the bending portion.

[0015] In one embodiment, the measuring head is threadedly connected to the bending portion.

[0016] In one embodiment, a contact end is provided at one end of the measuring head away from the rod body, and an end surface of the contact end is arranged in an arc shape.

[0017] In one embodiment, the movable plate is provided with a plurality of through slots, the plurality of through slots are arranged along the circumference of the movable plate, the inner walls of the through slots are convexly provided with a limiting portion, and the plurality of measuring rods are inserted one-to-one into the plurality of through slots so that the limiting portion abuts against the measuring rod.

[0018] In one embodiment, the bracket includes a scale plate, which is disposed at one end of the bracket away from the movable plate, and the scale plate is used to cooperate with the scale on the scale rod to form a diameter value of the hole to be measured.

[0019] The technical solution of the utility model adopts a user-manually driven bracket to drive the scale rod and the movable plate to perform lifting and lowering movements, and multiple measuring rods are used to adjust the angle between the scale rod and the movable plate along with the lifting and lowering movements, so that the measuring head is against the inner wall of the hole to be measured, so that the user can read the diameter of the inner wall of the hole to be measured according to the value displayed on the scale rod, thereby reducing the influence of human factors on the measurement process, and further improving the measurement accuracy of the measuring device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0021] Figure 1A schematic structural diagram of an embodiment of a deep hole measuring device provided by the utility model;

[0022] Figure 2 A structural cross-sectional view of another embodiment of the deep hole measuring device provided by the utility model;

[0023] Figure 3 This is a structural explosion diagram of another embodiment of the deep hole measuring device provided by the utility model.

[0024] Description of Figure Numbers:

[0025] 1. Bracket; 11. Handle; 12. Mounting part; 121. Articulated part; 13. Scale plate; 2. Scale rod; 3. Movable plate; 31. Through slot; 311. Limiting part; 4. Measuring rod; 41. Measuring head; 411. Contact end; 42. Rod body; 43. Bending part.

[0026] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0029] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0030] Deep hole parts are widely used in the manufacturing industry, and they play a vital role in various types of equipment. Deep hole parts are characterized by complex internal structures, usually containing stepped holes with larger diameters. These stepped holes have a vital impact on the performance and quality of the product, so accurate measurement of the step hole diameter is particularly important.

[0031] When the internal space of a deep hole is limited, traditional measuring tools and methods are difficult to apply directly. The shape and structure of deep hole parts are complex and changeable, which can easily lead to errors in the measurement results. The existing traditional inner diameter measurement methods mainly rely on tools such as calipers and callipers. The operation process of this type of measurement method is relatively cumbersome, the measurement accuracy is difficult to guarantee, and it is greatly affected by human factors.

[0032] The utility model provides a deep hole measuring device.

[0033] See also Figures 1 to 3 In one embodiment of the utility model, a deep hole measuring device is used to measure the diameter of a hole to be measured in a deep hole, and the deep hole measuring device includes a bracket 1;

[0034] A scale rod 2, wherein the scale rod 2 is movably mounted on the bracket 1;

[0035] A movable plate 3, wherein the movable plate 3 is connected to the scale rod 2; and

[0036] A plurality of measuring rods 4, wherein the plurality of measuring rods 4 are arranged along the circumference of the bracket 1, each of the measuring rods 4 is hinged to the bracket 1, and the movable plate 3 is raised and lowered and sleeved on the outer circumference of the plurality of measuring rods 4, and the measuring rod 4 further comprises a measuring head 41, and the axis of the measuring head 41 intersects with the axis of the measuring rod 4;

[0037] The technical solution of the utility model adopts the method of manually driving the bracket 1 by the user to drive the scale rod 2 and the movable plate 3 to perform lifting movement, and the multiple measuring rods 4 are used to adjust the angle between the scale rod 2 along with the lifting movement of the movable plate 3, so that the measuring head 41 abuts against the inner wall of the hole to be measured, so that the user can read the diameter of the inner wall of the hole to be measured according to the value displayed on the scale rod 2, thereby reducing the influence of human factors on the measurement process, and further improving the measurement accuracy of the measuring device.

[0038] In this embodiment, the axis of the bracket 1, the axis of the scale rod 2 and the center line of the movable plate 3 can overlap along the axis direction of the scale rod 2, so that the axis of the scale rod 2 coincides with the axis of the deep hole when the present application is located in the deep hole, thereby improving the measurement accuracy of the present application. The bracket 1 is used to install the scale rod 2, the bracket 1 can be sleeved on the outer periphery of the scale rod 2, and the bracket 1 can be threadedly connected to the scale rod 2, so that the user can manually drive the bracket 1 to drive the scale rod 2 to perform lifting and lowering movements. The bracket 1 can also be used to install a measuring rod 4, a plurality of measuring rods 4 can be arranged along the circumference of the bracket 1, and the plurality of measuring rods 4 are hinged on the bracket 1, so that an adjustable angle is formed between each measuring rod 4 and the scale rod 2, and the movable plate 3 can be lifted and lowered on the outer periphery of the plurality of measuring rods 4, so that the movable plate 3 can drive each measuring rod 4 to approach or move away from the scale rod 2 when performing lifting and lowering activities, thereby adjusting the size of the angle, so that the measuring head 41 on the measuring rod 4 better abuts against the inner wall of the hole to be measured. The movable plate 3 can be arranged at one end of the scale rod 2 away from the bracket 1, so that when the scale rod 2 is lifted and lowered, the movable plate 3 is driven to lift and lower, and the movable plate 3 is used to fix the angle between the measuring rod 4 and the scale rod 2 when the lifting and lowering movement is stopped. In order to make the measuring rod 4 more convenient to abut the inner wall of the hole to be measured, the measuring rod 4 is provided to further include a measuring head 41, and the axis of the measuring head 41 is arranged to intersect with the axis of the measuring rod 4, so that the measuring head 41 is bent relative to the measuring rod 4. The working principle of the present application is as follows: the present application is placed in a deep hole, and the bracket 1 is rotated to drive the scale rod 2 and the movable plate 3 to lift and lower together, so as to adjust the positions of the multiple measuring rods 4 in the deep hole. When the scale rod 2 is lifted and lowered to the first position, the measuring heads 41 on the multiple measuring rods 4 are in contact with the inner wall of the hole to be measured, and the scale rod 2 forms a scale value according to the angle opened by the multiple measuring rods 4. The user obtains the diameter of the hole to be measured by reading the scale value displayed on the scale rod 2.

[0039] like Figure 1 and Figure 3 As shown, in this embodiment, the bracket 1 includes a handle 11 and a mounting portion 12, the scale rod 2 is liftably disposed in the handle 11, the mounting portion 12 is sleeved on the outer periphery of the scale rod 2, and each of the measuring rods 4 is hinged to the mounting portion 12.

[0040] In this embodiment, the scale rod 2 is arranged to be liftable in the handle 11, so that the user can drive the handle 11 to drive the scale rod 2 to move up and down, thereby driving the movable plate 3 to move up and down, thereby simplifying the user's measurement steps of the present application, and further facilitating the user to measure the diameter of the hole to be measured in the deep hole. By arranging the mounting portion 12 to be sleeved on the outer periphery of the scale rod 2, each measuring rod 4 is evenly hinged to the mounting portion 12 along the circumferential interval of the mounting portion 12, so that the measuring rod 4 is conveniently hinged to the bracket 1.

[0041] In this embodiment, the handle 11 is threadedly connected to the scale rod 2 .

[0042] In this embodiment, in order to facilitate the user to drive the scale rod 2 to move up and down, a handle 11 is provided to be threadedly connected to the scale rod 2 so that the user can manually rotate the handle 11 to drive the scale rod 2 to move up and down.

[0043] like Figures 1 to 3 As shown, in this embodiment, the mounting portion 12 is provided with a plurality of hinged portions 121, and the plurality of hinged portions 121 are arranged along the circumference of the mounting portion 12, and the plurality of measuring rods 4 are hinged to the plurality of hinged portions 121 one by one, so that the plurality of measuring rods 4 are hinged to the mounting portion 12.

[0044] In this embodiment, the plurality of hinged parts 121 may include a first connecting arm and a second connecting arm, and a hinge groove for mounting the measuring rod 4 may be formed between the first connecting arm and the second connecting arm. The first connecting arm and the second connecting arm may be provided with a first hinge hole, and the end of the measuring rod 4 away from the measuring head 41 may be provided with a second hinge hole matched with the first hinge hole, and the measuring rod 4 is inserted into the hinge groove, and the pin shaft passes through the first hinge hole, the hinge groove and the second hinge hole in sequence, so that the measuring rod 4 is hinged in the hinged part 121, thereby improving the hinge stability of the measuring rod 4 and the mounting part 12.

[0045] like Figure 1 and Figure 3 As shown, in the present embodiment, the number of the plurality of measuring rods 4 is set to three, the three measuring rods 4 are arranged at intervals along the circumference of the mounting portion 12 , and each of the measuring rods 4 is hinged to the mounting portion 12 .

[0046] In this embodiment, by setting the number of the multiple measuring rods 4 to three, and the three measuring rods 4 are evenly arranged at circumferential intervals along the mounting portion 12, when measuring the diameter of the hole to be measured in the deep hole, the measuring heads 41 on the three measuring rods 4 can more stably abut the inner wall of the hole to be measured, thereby improving the accuracy of measuring the diameter of the hole to be measured in this application.

[0047] like Figure 2 and Figure 3As shown, in this embodiment, the measuring rod 4 includes a rod body 42 and a bending portion 43 , the bending portion 43 is provided at one end of the rod body 42 away from the mounting portion 12 , and the measuring head 41 is detachably mounted on the bending portion 43 .

[0048] In this embodiment, the measuring head 41 is detachably connected to the bending portion 43, so that the user can measure the diameter of the hole to be measured by replacing the measuring head 41 of different lengths according to the size of the deep hole, thereby facilitating the user to measure the diameter of the hole to be measured. The bending portion 43 is formed by bending the end of the rod body 42 away from the mounting portion 12, so that the measuring head 41 is tilted relative to the measuring rod 4, thereby facilitating the measuring head 41 to abut against the inner wall of the hole to be measured.

[0049] like Figure 2 and Figure 3 As shown, in this embodiment, the measuring head 41 is threadedly connected to the bending portion 43 .

[0050] In this embodiment, the measuring head 41 is threadedly connected to the bending portion 43, so that the user can perform measurement by replacing the measuring head 41 of different lengths according to the size of the deep hole diameter, thereby facilitating the user to measure the diameter of the hole to be measured.

[0051] like Figure 3 As shown, in this embodiment, a contact end 411 is provided at one end of the measuring head 41 away from the rod body 42 , and the end surface of the contact end 411 is arranged in an arc shape.

[0052] In this embodiment, in order to make the measuring head 41 more closely contact the arc-shaped inner wall of the hole to be measured, a contact end 411 with an arc-shaped end surface is provided at one end of the measuring head 41 away from the rod body 42, thereby improving the measurement accuracy of the present application.

[0053] like Figure 2 and Figure 3 As shown, in this embodiment, the movable plate 3 is provided with a plurality of through grooves 31, and the plurality of through grooves 31 are arranged along the circumference of the movable plate 3, and a limiting portion 311 is protruded from the inner wall of the through groove 31, and the plurality of measuring rods 4 are inserted one by one into the plurality of through grooves 31 so that the limiting portion 311 abuts against the measuring rod 4.

[0054] In this embodiment, in order to improve the connection stability between the movable plate 3 and the measuring rod 4, a contact portion may be provided at one end of the limiting portion 311 that abuts against the measuring rod 4, and the contact portion has an arc-shaped end surface, so that when the movable plate 3 stops the lifting and lowering movement, the movable plate 3 can better fix the measuring rod 4, while at the same time avoiding the limiting portion 311 from restricting the movable plate 3 from lifting and lowering movement along the outer periphery of the measuring rod 4.

[0055] like Figures 1 to 3As shown, in this embodiment, the bracket 1 includes a dial 13, which is arranged at one end of the bracket 1 away from the movable plate 3, and the dial 13 is used to cooperate with the scale on the scale rod 2 to form the diameter value of the hole to be measured.

[0056] In this embodiment, the dial 13 is arranged at one end of the bracket 1 away from the movable plate 3, so that the end surface of the dial 13 away from the movable plate 3 coincides with a certain scale on the scale rod 2 in the horizontal direction to form the diameter value of the hole to be measured, thereby facilitating the user to read the diameter value of the hole to be measured more easily.

[0057] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A deep hole measuring device, used to measure the diameter of a hole to be measured in a deep hole, characterized in that: The deep hole measuring device comprises: Bracket; A scale rod, the scale rod being liftably disposed on the bracket; a movable plate connected to the scale rod; and A plurality of measuring rods are arranged along the circumference of the bracket, each of the measuring rods is hinged to the bracket, the movable plate is liftably mounted on the outer circumference of the plurality of measuring rods, the measuring rods also include a measuring head, the axis of the measuring head intersects with the axis of the measuring rod.

2. The deep hole measuring device according to claim 1, characterized in that: The bracket comprises a handle and a mounting portion, the scale rod is liftably arranged in the handle, the mounting portion is sleeved on the outer circumference of the scale rod, and each measuring rod is hinged to the mounting portion.

3. The deep hole measuring device according to claim 2, characterized in that: The handle is threadedly connected to the scale rod.

4. The deep hole measuring device according to claim 2, characterized in that: The mounting portion is provided with a plurality of hinged portions, and the plurality of hinged portions are arranged along the circumference of the mounting portion. The plurality of measuring rods are hinged to the plurality of hinged portions one by one, so that the plurality of measuring rods are hinged to the mounting portion.

5. The deep hole measuring device according to claim 2, characterized in that: The number of the plurality of measuring rods is set to three, the three measuring rods are arranged at intervals along the circumference of the mounting portion, and each of the measuring rods is hinged to the mounting portion.

6. The deep hole measuring device according to claim 2, characterized in that: The measuring rod comprises a rod body and a bending portion, wherein the bending portion is arranged at one end of the rod body away from the mounting portion, and the measuring head is detachably mounted on the bending portion.

7. The deep hole measuring device according to claim 6, characterized in that: The measuring head is threadedly connected to the bending portion.

8. The deep hole measuring device according to claim 6, characterized in that: A contact end is provided at one end of the measuring head away from the rod body, and the end surface of the contact end is arranged in an arc shape.

9. The deep hole measuring device according to claim 1, characterized in that: The movable plate is provided with a plurality of through slots, which are arranged along the circumference of the movable plate. The inner walls of the through slots are convexly provided with limiting portions, and the plurality of measuring rods are inserted into the plurality of through slots one by one so that the limiting portions abut against the measuring rods.

10. The deep hole measuring device according to any one of claims 1 to 9, characterized in that: The bracket comprises a scale plate, which is arranged at one end of the bracket away from the movable plate, and the scale plate is used to cooperate with the scale on the scale rod to form the diameter value of the hole to be measured.

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