A support arm for a length setting instrument

Abstract

This utility model discloses a support arm for a length setting instrument, relating to the field of length setting instruments. The technical solution of this utility model includes a base, an adjusting cylinder, a support rod, an inner column, an adjusting knob, and a locking knob. The upper section of the base has a downward-sloping vertical sliding hole. The upper sidewall of the adjusting cylinder is fixed to the support rod. The lower end of the inner column is fixed to the bottom of the sliding hole, and the upper end of the inner column is slidably fitted inside the adjusting cylinder. The top of the adjusting cylinder is threaded with the adjusting knob, and the lower end of the adjusting knob extends into the adjusting cylinder and abuts against the upper end of the inner column. The sidewall of the sliding hole has a vertically shaped slot, and the locking knob passes through the slot and is threaded into the adjusting cylinder. The height of the support rod can be adjusted using the adjusting knob, resulting in higher adjustment precision, achieving a fine-tuning effect, and making operation more convenient.

Description

Technical Field

[0001] This utility model relates to the field of length setting instruments, and in particular to a support arm for a length setting instrument. Background Technology

[0002] A length setter is an industrial measuring device used for high-precision setting and verification of workpiece dimensions. It replaces traditional measuring tools by pre-setting values, supporting automated measurement and adaptability to multiple scenarios. Its structure can be referenced in the adjustable length setter disclosed in patent document CN214095794U.

[0003] The length setting device requires a support arm during use, and the support arm needs to have a certain height adjustment function. However, the current support arm usually only locks the bracket to the column with fastening bolts, and cannot make fine adjustments to the height, resulting in the adjustment accuracy not meeting the requirements. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a support arm for a length setting instrument. The vertical height of the support rod can be adjusted by adjusting the knob, which has higher adjustment accuracy, can achieve the effect of fine adjustment, and is more convenient to operate.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a support arm for a length setting instrument, including a base, an adjusting cylinder, a support rod, an inner column, an adjusting knob and a locking knob;

[0006] The upper section of the base is provided with a downward vertical sliding hole, the lower section of the adjusting cylinder is slidably fitted into the sliding hole, and the side wall of the upper section of the adjusting cylinder is fixed to the support rod;

[0007] The inner column is coaxially disposed in the sliding hole. The lower end of the inner column is fixed to the bottom of the sliding hole. The upper end of the inner column is slidably fitted inside the adjusting cylinder. The top of the adjusting cylinder is threaded with the adjusting knob. The lower end of the adjusting knob extends into the interior of the adjusting cylinder and abuts against the upper end of the inner column.

[0008] The sidewall of the sliding hole is vertically provided with a strip-shaped hole, the locking knob passes through the strip-shaped hole and is threaded to the adjusting cylinder, and the front end of the locking knob abuts against the sidewall of the inner column.

[0009] In use, the base is used to fix the length setting instrument, and the support rod is used to provide support. The lower end of the adjustment knob is always in contact with the upper end of the inner column. Therefore, when the adjustment knob is turned, the length of the adjustment knob extending into the adjustment cylinder will change. When changing the height of the adjustment cylinder, the locking knob needs to be loosened so that the relative position of the adjustment cylinder and the inner column can be changed. At the same time, the locking knob can guide the adjustment cylinder to prevent it from rotating relative to the sliding hole.

[0010] If the inserted length increases, it will push the inner column, causing the adjusting cylinder to slide upwards along with the support rod. If the inserted length decreases, the adjusting cylinder will slide downwards along with the support rod. This is how the vertical position of the adjusting cylinder is changed. Because it uses a rotation method, the adjustment process is slower, more stable, and more precise. After the position is determined, the locking knob can be turned to lock it against the side wall of the inner column.

[0011] Preferably, the lower end of the base is provided with a bottom hole, and a fixing plate is provided between the sliding hole and the bottom hole. The fixing plate is provided with a through hole, and the bolt passes through the through hole from the bottom hole upwards and is connected to the lower end of the inner column. The bottom hole and the through hole make it easier to fix the inner column in the sliding hole with bolts.

[0012] Preferably, the adjusting cylinder and the support rod are connected by screws, which makes disassembly and assembly easier.

[0013] Preferably, the upper sidewall of the sliding hole is provided with a groove corresponding to the support rod. This allows the support rod to be locked when the adjusting cylinder slides to its lowest position, further improving the positional stability of the support rod.

[0014] Preferably, the locking knob includes a threaded section at the front and a guide section at the rear. The threaded section engages with the threaded sidewall of the adjusting cylinder. The guide section engages with the slotted hole, facilitating guidance.

[0015] Preferably, a first handle is provided at the rear end of the locking knob to facilitate rotation of the locking knob.

[0016] Preferably, a second handle is provided at the upper end of the adjustment knob to facilitate rotation of the adjustment knob.

[0017] Preferably, a tension spring is provided between the adjusting cylinder and the bottom of the sliding hole. When the adjusting knob is rotated to shorten the length of the adjusting cylinder, the tension spring can pull the adjusting cylinder downwards, ensuring that the lower end of the adjusting knob is always in contact with the upper end of the inner column, making the adjustment process more convenient.

[0018] Preferably, the tension spring is sleeved on the inner post. This makes better use of the space between the inner post and the sliding hole.

[0019] The beneficial effects of this utility model are:

[0020] The height of the support rod can be adjusted by adjusting the knob, which provides higher precision and allows for fine-tuning. The operation is more convenient, and once the position is determined, it can be locked by the locking knob to improve the stability of the support. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only three of the drawings in this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a perspective view of Embodiment 1 of the present utility model;

[0023] Figure 2 This is a cross-sectional view of Embodiment 1 of the present utility model;

[0024] Figure 3 This is a cross-sectional view of Embodiment 2 of the present invention;

[0025] The components include: 1. base; 2. adjusting cylinder; 3. support rod; 4. inner column; 5. adjusting knob; 6. locking knob; 7. sliding hole; 8. bottom hole; 9. strip hole; 10. bolt; 11. threaded section; 12. guide section; 13. first handle; 14. second handle; 15. tension spring; and 16. slot. Detailed Implementation

[0026] To enhance understanding of this utility model, it will be described in further detail below with reference to the accompanying drawings and embodiments. These embodiments are only used to explain this utility model and do not limit the scope of protection of this utility model.

[0027] Example 1

[0028] like Figure 1 and Figure 2 As shown, a support arm for a length setting instrument includes a base 1, an adjusting cylinder 2, a support rod 3, an inner column 4, an adjusting knob 5, and a locking knob 6.

[0029] The upper section of the base 1 is provided with a downward vertical sliding hole 7, the lower section of the adjusting cylinder 2 is slidably fitted into the sliding hole 7, and the upper side wall of the adjusting cylinder 2 is fixed to the support rod 3.

[0030] The inner column 4 is coaxially disposed within the sliding hole 7. The lower end of the inner column 4 is fixed to the bottom of the sliding hole 7. The upper end of the inner column 4 is slidably fitted inside the adjusting cylinder 2. The top of the adjusting cylinder 2 is threaded with the adjusting knob 5. The lower end of the adjusting knob 5 extends into the interior of the adjusting cylinder 2 and abuts against the upper end of the inner column 4.

[0031] The side wall of the sliding hole 7 is vertically provided with a strip hole 9. The locking knob 6 passes through the strip hole 9 and is threaded to the adjusting cylinder 2. The front end of the locking knob 6 abuts against the side wall of the inner column 4.

[0032] In use, the base 1 is used to fix the length setting instrument, and the support rod 3 is used to provide support. The lower end of the adjusting knob 5 is always in contact with the upper end of the inner column 4. Therefore, when the adjusting knob 5 is rotated, the length of the adjusting knob 5 extending into the adjusting cylinder 2 will change. When changing the height of the adjusting cylinder 2, the locking knob 6 needs to be loosened so that the relative positions of the adjusting cylinder 2 and the inner column 4 can be changed. At the same time, the locking knob 6 can guide the adjusting cylinder 2 to prevent it from rotating relative to the sliding hole 7.

[0033] If the inserted length increases, it will push the inner column 4, causing the adjusting cylinder 2 to slide upwards along with the support rod 3. If the inserted length decreases, the adjusting cylinder 2 will slide downwards along with the support rod 3. This is how the vertical position of the adjusting cylinder 2 is changed. Because it uses a rotation method, the adjustment process is slower, more stable, and more precise. After the position is determined, the locking knob 6 can be turned to lock it against the side wall of the inner column 4.

[0034] The lower end of the base 1 is provided with a bottom hole 8, and a fixing plate is provided between the sliding hole 7 and the bottom hole 8. The fixing plate is provided with a through hole, and the bolt 10 passes through the through hole from the bottom hole 8 upward and is connected to the lower end of the inner column 4. Through the bottom hole 8 and the through hole, it is easier to fix the inner column 4 in the sliding hole 7 with the bolt 10.

[0035] The adjusting cylinder 2 and the support rod 3 are connected by screws, making disassembly and assembly easier.

[0036] The upper sidewall of the sliding hole 7 is provided with a groove 16 corresponding to the support rod 3. This allows the support rod 3 to be locked when the adjusting cylinder 2 slides to its lowest position, further improving the positional stability of the support rod 3.

[0037] The locking knob 6 includes a threaded section 11 at the front and a guide section 12 at the rear. The threaded section 11 engages with the side wall thread of the adjusting cylinder 2. The guide section 12 engages with the slotted hole 9, facilitating guidance.

[0038] The locking knob 6 has a first handle 13 at its rear end, which facilitates the rotation of the locking knob 6.

[0039] A second handle 14 is provided at the upper end of the adjustment knob 5 to facilitate rotation of the adjustment knob 5.

[0040] Example 2

[0041] Combination Figure 3 As shown, compared to Embodiment 1, Embodiment 2 further includes the following differences: a tension spring 15 is provided between the bottom of the adjusting cylinder 2 and the sliding hole 7. When the adjusting knob 5 is rotated, causing the length of the adjusting knob 5 extending into the adjusting cylinder 2 to shorten, the tension spring 15 can pull the adjusting cylinder 2 downwards, ensuring that the lower end of the adjusting knob 5 is always in contact with the upper end of the inner column 4, making the adjustment process more convenient. The tension spring 15 is sleeved on the inner column 4, making better use of the space between the inner column 4 and the sliding hole 7.

[0042] The beneficial effects of this utility model are:

[0043] The vertical height of the support rod 3 can be adjusted by adjusting knob 5, which has higher adjustment precision and can achieve the effect of fine adjustment. The operation is more convenient, and after the position is determined, the position can be locked by locking knob 6 to improve the stability of the support.

[0044] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0045] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A support arm for a length setting instrument, characterized by, It includes a base (1), an adjusting cylinder (2), a support rod (3), an inner column (4), an adjusting knob (5), and a locking knob (6); The upper section of the base (1) is provided with a sliding hole (7) in the downward vertical direction. The lower section of the adjusting cylinder (2) is slidably fitted into the sliding hole (7). The upper side wall of the adjusting cylinder (2) is fixed to the support rod (3). The inner column (4) is coaxially disposed in the sliding hole (7). The lower end of the inner column (4) is fixed to the bottom of the sliding hole (7). The upper end of the inner column (4) is slidably fitted inside the adjusting cylinder (2). The top of the adjusting cylinder (2) is threaded with the adjusting knob (5). The lower end of the adjusting knob (5) extends into the interior of the adjusting cylinder (2) and abuts against the upper end of the inner column (4). The side wall of the sliding hole (7) is provided with a strip hole (9) in the vertical direction. The locking knob (6) passes through the strip hole (9) and is threaded to the adjusting cylinder (2). The front end of the locking knob (6) abuts against the side wall of the inner column (4).

2. The support arm for a length setting instrument according to claim 1, characterized in that: The lower end of the base (1) is provided with a bottom hole (8), and a fixing plate is provided between the sliding hole (7) and the bottom hole (8). The fixing plate is provided with a through hole, and the bolt (10) passes through the through hole from the bottom hole (8) and is connected to the lower end of the inner column (4).

3. A support arm for a length setting instrument according to claim 1, characterized in that: The adjusting cylinder (2) and the support rod (3) are connected by screws.

4. A support arm for a length setting instrument according to claim 1, characterized in that: The upper sidewall of the sliding hole (7) is provided with a slot (16) corresponding to the support rod (3).

5. A support arm for a length setting instrument according to claim 1, characterized in that: The locking knob (6) includes a threaded section (11) at the front and a guide section (12) at the rear. The threaded section (11) is threaded to the side wall of the adjusting cylinder (2).

6. A support arm for a length setting instrument according to claim 1, characterized in that: The locking knob (6) has a first handle (13) at its rear end.

7. A support arm for a length setting instrument according to claim 1, characterized in that: The upper end of the adjustment knob (5) is provided with a second handle (14).

8. A support arm for a length setting instrument according to claim 1, characterized in that: A tension spring (15) is provided between the bottom of the adjusting cylinder (2) and the sliding hole (7).

9. A support arm for a length setting instrument according to claim 8, characterized in that: The tension spring (15) is fitted over the inner post (4).

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