Instrument hairspring convenient to install

Abstract

The utility model discloses an instrument hairspring convenient to install, and relates to the technical field of instrument hairsprings, the instrument hairspring convenient to install comprises a tray, a body and a limiting frame, the center of the interior of the tray is fixedly connected with a limiting column, the outer side of the limiting column is provided with threads, the body is movably connected to the outer side of the limiting column, and the limiting frame is in a cross shape. A through hole is formed in the center of the limiting frame, and the limiting column is sleeved with the limiting frame through the through hole. By means of the amplitude limiting mechanism, the electric push rod is started, when the telescopic end of the electric push rod extends, the movable block is pushed to move in the sliding groove, the reset spring is compressed and shortened, the amplitude limiting block moves away from the outer side of the body, and on the contrary, when the telescopic end of the electric push rod retracts, under the action of the reset spring, the amplitude limiting block moves away from the body. The moving block is pushed to approach the outer side of the body, so that the swing range of the body is adjusted, deformation of the body is reduced, and the body is controlled to work in a proper range.

Description

Technical Field

[0001] The present application relates to the technical field of instrument hairsprings, and more specifically, to an instrument hairspring that is easy to install. Background Art

[0002] Instrument hairsprings are instruments used to measure tiny displacements or deformations. They are commonly found in laboratories, engineering, and manufacturing. The right hairspring material is usually a high-strength and low-magnetic metal alloy, such as stainless steel or platinum-rhodium alloy. The smaller the diameter, the less impact the hairspring has on the object being measured, but it also reduces the stability and strength of the hairspring. It is necessary to find a balance between diameter and stability and design a hairspring fixation method so that it can be easily and reliably installed on the object being measured. You can consider using a fixture, clamping device, or adhesive.

[0003] Patent document CN215417545U relates to a portable instrument hairspring, comprising: a chassis, on which a central carrying plate is provided; a hairspring retracting mechanism connected to the carrying plate for retracting the hairspring, the hairspring retracting mechanism comprising: a hairspring inner plate, an elastic member for driving the hairspring inner plate to move toward the carrying plate, and a hairspring outer plate connected to the elastic member; and a movable fixing assembly. In the initial state, the fixed boss is engaged in the bearing groove to form a complete hairspring surface; the hairspring is wound on the central bearing plate, and under the action of the elastic member, the hairspring inner plate fixes the hairspring; further, during the hairspring process, the hairspring inner plate moves toward the central bearing plate to fix the bearing boss, thereby not affecting the hairspring operation and continuously fixing the hairspring; when the hairspring inner plate cannot fix the hairspring, the second telescopic rod drives the fixed boss to move upward, so that the fixed boss can fix the hairspring, and then the hairspring operation can continue; when the hairspring is working, it not only generates horizontal vibration, but also generates slight vertical vibration. Therefore, it is necessary to set an amplitude change mechanism on the outside of the hairspring to avoid excessive deformation after the hairspring vibrates violently, and it is necessary to quickly fix the hairspring to reduce its vertical vibration. For this reason, an instrument hairspring that is easy to install is needed to solve the existing deficiencies. Utility Model Content

[0004] In order to solve the above problems, the present application provides an instrument hairspring that is easy to install, using the following technical solution:

[0005] A kind of instrument hairspring which is easy to install comprises a tray, a main body and a limit frame, wherein a limit column is fixedly connected to the inner center of the tray, and a thread is provided on the outer side of the limit column, the main body is movably connected to the outer side of the limit column, the limit frame is cross-shaped, a through hole is provided at the center of the limit frame, and the limit frame is sleeved on the outer side of the limit column through the through hole, a positioning ring is threadedly connected to the outer side of the limit column, and the bottom end of the positioning ring is fitted with the top end of the limit frame, both ends of the limit frame are provided with a limiting mechanism, and the limiting mechanism is movably connected to the outer side of the main body, a group of symmetrical limiting mechanisms are movably connected to the outer side of the limit frame, and the limiting mechanism is movably connected to the limit column.

[0006] By adopting the above technical solution, the limiting mechanism includes an electric push rod, a moving block and a limiting block. The telescopic end of the electric push rod is fixedly connected to one end of the moving block, the bottom end of the moving block is fixedly connected to the top of the limiting block, and the width of the moving block is greater than the width of the moving block. The limiting block fits well with the outer side of the main body.

[0007] By adopting the above technical solution, a slide groove is opened at the bottom end of the end of the limit frame, the electric push rod is fixedly connected to the inside of the slide groove, and the moving block is slidably connected to the inside of the slide groove, and the limit block is located directly below the limit frame.

[0008] By adopting the above technical solution, the limiting mechanism also includes a return spring, which is located inside the slide slot, one end of the return spring is fixedly connected to the inside of the slide slot, and the other end of the return spring is fixedly connected to the moving block.

[0009] By adopting the above technical solution, the limiting mechanism includes an insertion rod, side block one and side block two, and the side block one and side block two are symmetrically arranged. The side block one is respectively fixedly connected to the two sides of the insertion rod, and the side block two is respectively fixedly connected to the two sides of the insertion rod. The side block one and side block two are respectively located at the two ends of the insertion rod, and the insertion rod and side block one are movably connected to the inside of the limiting frame, and the side block two is located on the outside of the limiting frame.

[0010] By adopting the above technical solution, two groups of symmetrical guide rods are fixedly connected to the inside of the limit frame, and the ends of the guide rods extend to the outside of the limit frame. The insertion rods are located on the opposite side of the guide rods. The guide rods pass through side block one and side block two in sequence, and the guide rods are movably connected to side block one and side block two.

[0011] By adopting the above technical solution, the limiting mechanism also includes a compression spring, which is symmetrically arranged. The compression springs are respectively sleeved on the outside of the guide rod, one end of the compression spring is fixedly connected to the inside of the limiting frame, and the other end of the compression spring is fixedly connected to one end of the edge block.

[0012] By adopting the above technical solution, a group of symmetrical insertion holes are opened on the outer side of the limiting column, the front end of the insertion rod is constructed with a beveled surface, the beveled surface faces downward, and the front end of the insertion rod is adapted to the insertion hole.

[0013] In summary, this application includes the following beneficial technical effects:

[0014] (1) The utility model starts the electric push rod by setting a limiting mechanism. When the telescopic end of the electric push rod is extended, the moving block is pushed to move inside the slide slot, and the return spring is compressed and shortened, so that the limiting block moves away from the outer side of the body. Conversely, when the telescopic end of the electric push rod is retracted, the return spring pushes the moving block closer to the outer side of the body, thereby adjusting the swing range of the body, reducing the deformation of the body, and controlling the body to work within a suitable range.

[0015] (2) The utility model uses a limit mechanism to push the insertion rod into the interior of the limit frame until the front end of the insertion rod is inserted into the interior of the insertion hole under the action of the compression spring, thereby fixing the position of the limit frame to prevent the limit frame from rotating due to the shaking of the body, thereby preventing the limit frame from shifting in the horizontal or vertical direction. Conversely, the insertion rod is pulled outward to move the side block along the guide rod, so that the compression spring is compressed and shortened. At this time, the insertion rod is separated from the insertion hole, and the limit frame can be separated from the limit column; BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the explosion structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the limiting mechanism of the utility model;

[0019] Figure 4 For this utility model Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0020] Figure 5 For this utility model Figure 2 Schematic diagram of the enlarged structure at point B in the middle.

[0021] In the figure: 1. tray; 2. body; 3. limit frame; 4. through hole; 5. positioning ring; 6. limit mechanism; 601. electric push rod; 602. moving block; 603. limit block; 604. reset spring; 7. limit mechanism; 701. plug rod; 702. side block one; 703. side block two; 704. compression spring; 8. slide groove; 9. guide rod; 10. socket; 11. limit column. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0023] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0024] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0025] like Figure 1-5 As shown, the utility model provides a technical solution: an instrument hairspring that is easy to install, comprising a tray 1, a body 2 and a limit frame 3, a limit column 11 is fixedly connected to the inner center of the tray 1, and a thread is provided on the outer side of the limit column 11, the body 2 is movably connected to the outer side of the limit column 11, the limit frame 3 is cross-shaped, a through hole 4 is provided at the center of the limit frame 3, and the limit frame 3 is sleeved on the outer side of the limit column 11 through the through hole 4, a positioning ring 5 is threadedly connected to the outer side of the limit column 11, and the bottom end of the positioning ring 5 is fitted with the top end of the limit frame 3, the ends of the limit frame 3 are provided with limit mechanisms 6, and the limit mechanisms 6 are movably connected to the outer side of the body 2, and a group of symmetrical limit mechanisms 7 are movably connected to the outer side of the limit frame 3, and the limit mechanisms 7 are movably connected to the limit column 11.

[0026] First, the main body 2 is sleeved on the outside of the limit column 11, and then the limit frame 3 is sleeved on the outside of the limit column 11, and then the positioning ring 5 is rotated to fix the height of the limit frame 3, and the swing range of the main body 2 is adjusted through the limiting mechanism 6 to reduce the deformation of the main body 2 and control the main body 2 to work within a suitable range, and the position of the limit frame 3 is limited through the limiting mechanism 7 to avoid horizontal or vertical deviation of the limit frame 3.

[0027] like Figure 1 , Figure 2 and Figure 4 As shown, the limiting mechanism 6 includes an electric push rod 601, a moving block 602 and a limiting block 603. The telescopic end of the electric push rod 601 is fixedly connected to one end of the moving block 602, the bottom end of the moving block 602 is fixedly connected to the top of the limiting block 603, and the width of the moving block 602 is greater than the width of the moving block 602. The limiting block 603 fits the outer side of the body 2, and the bottom ends of the ends of the limiting frame 3 are provided with a slide groove 8. The electric push rod 601 is fixedly connected to the inside of the slide groove 8, and the moving block 602 is slidably connected to the inside of the slide groove 8. The limiting block 603 is located directly below the limiting frame 3. The limiting mechanism 6 also includes a return spring 604, which is located on the inner side of the slide groove 8, one end of the return spring 604 is fixedly connected to the inside of the slide groove 8, and the other end of the return spring 604 is fixedly connected to the moving block 602.

[0028] When the electric push rod 601 is started and the telescopic end of the electric push rod 601 is extended, the moving block 602 is pushed to move inside the slide groove 8, and the return spring 604 is compressed and shortened, so that the limiting block 603 moves away from the outside of the main body 2. Conversely, when the telescopic end of the electric push rod 601 is contracted, under the action of the return spring 604, the moving block 602 is pushed close to the outside of the main body 2, thereby adjusting the swing range of the main body 2, reducing the deformation of the main body 2, and controlling the main body 2 to work within an appropriate range.

[0029] like Figure 1 , Figure 2 , Figure 3 and Figure 5As shown, the limiting mechanism 7 includes an insertion rod 701, a side block 1 702 and a side block 2 703, and the side block 1 702 and the side block 2 703 are symmetrically arranged. The side block 1 702 is respectively fixedly connected to the two sides of the insertion rod 701, and the side block 2 703 is respectively fixedly connected to the two sides of the insertion rod 701. The side block 1 702 and the side block 2 703 are respectively located at the two ends of the insertion rod 701. The insertion rod 701 and the side block 1 702 are movably connected to the inside of the limiting frame 3, and the side block 2 703 is located on the outside of the limiting frame 3. Two sets of symmetrical guide rods 9 are fixedly connected to the inside of the limiting frame 3, and the ends of the guide rods 9 extend to the outside of the limiting frame 3. The insertion rod 701 is located at the guide rod 9. On the opposite side of the rod 9, the guide rod 9 passes through the side block 1 702 and the side block 2 703 in sequence, and the guide rod 9 is movably connected to the side block 1 702 and the side block 2 703. The limiting mechanism 7 also includes compression springs 704, which are symmetrically arranged. The compression springs 704 are respectively sleeved on the outside of the guide rod 9, one end of the compression spring 704 is fixedly connected to the inside of the limiting frame 3, and the other end of the compression spring 704 is fixedly connected to one end of the side block 1 702. A group of symmetrical sockets 10 are opened on the outside of the limiting column 11, and the front end of the plug rod 701 is constructed with a chamfered surface, the chamfered surface faces downward, and the front end of the plug rod 701 is adapted to the socket 10.

[0030] When the limit frame 3 moves downward and is sleeved on the outside of the limit column 11, since the front end bevel surface of the insertion rod 701 faces downward, the insertion rod 701 is pushed into the interior of the limit frame 3 until the front end of the insertion rod 701 is inserted into the interior of the socket 10 under the action of the compression spring 704, thereby fixing the position of the limit frame 3 to prevent the limit frame 3 from rotating due to the shaking of the main body 2, thereby preventing the limit frame 3 from shifting in the horizontal or vertical direction. Conversely, the insertion rod 701 is pulled outward to move the side block 1 702 along the guide rod 9, so that the compression spring 704 is compressed and shortened. At this time, the insertion rod 701 is separated from the socket 10, and the limit frame 3 can be separated from the limit column 11.

[0031] Working principle: When in use, first sleeve the body 2 on the outside of the limit column 11, then sleeve the limit frame 3 on the outside of the limit column 11, then rotate the positioning ring 5 to fix the height of the limit frame 3, start the electric push rod 601, and when the telescopic end of the electric push rod 601 is extended, it pushes the moving block 602 to move inside the slide groove 8, and the return spring 604 is compressed and shortened, so that the limit block 603 moves away from the outside of the body 2. Conversely, when the telescopic end of the electric push rod 601 is retracted, under the action of the return spring 604, the moving block 602 is pushed close to the outside of the body 2, so as to adjust the swing range of the body 2, reduce the deformation of the body 2, and control the body 2 to move within a suitable range. When the locking cam 704 is in the unlocking state, the locking cam 704 is in the unlocking state, and the locking cam 704 is in the unlocking state, so that the locking cam 704 can be unlocked and the locking cam 704 can be unlocked.

[0032] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An instrument hairspring that is easy to install, comprising a tray (1), a body (2) and a limit frame (3), characterized in that: A limiting column (11) is fixedly connected to the inner center of the tray (1), and a thread is provided on the outer side of the limiting column (11); the body (2) is movably connected to the outer side of the limiting column (11); the limiting frame (3) is cross-shaped; a through hole (4) is provided at the center of the limiting frame (3), and the limiting frame (3) is sleeved on the outer side of the limiting column (11) through the through hole (4); a positioning ring (5) is threadedly connected to the outer side of the limiting column (11), and the bottom end of the positioning ring (5) is fitted with the top end of the limiting frame (3); a limiting mechanism (6) is provided at the end of the limiting frame (3), and the limiting mechanism (6) is movably connected to the outer side of the body (2); a group of symmetrical limiting mechanisms (7) are movably connected to the outer side of the limiting frame (3), and the limiting mechanism (7) is movably connected to the limiting column (11).

2. The instrument hairspring that is easy to install according to claim 1, characterized in that: The limiting mechanism (6) comprises an electric push rod (601), a moving block (602) and a limiting block (603); the telescopic end of the electric push rod (601) is fixedly connected to one end of the moving block (602); the bottom end of the moving block (602) is fixedly connected to the top end of the limiting block (603); the width of the moving block (602) is greater than the width of the moving block (602); and the limiting block (603) is in contact with the outer side of the body (2).

3. The instrument hairspring that is easy to install according to claim 2, characterized in that: The bottom end of the end of the limit frame (3) is provided with a slide groove (8), the electric push rod (601) is fixedly connected to the inside of the slide groove (8), and the moving block (602) is slidably connected to the inside of the slide groove (8), and the limiting block (603) is located directly below the limit frame (3).

4. The instrument hairspring that is easy to install according to claim 3, characterized in that: The limiting mechanism (6) also includes a return spring (604), which is located on the inner side of the slide groove (8), one end of the return spring (604) is fixedly connected to the inside of the slide groove (8), and the other end of the return spring (604) is fixedly connected to the moving block (602).

5. The instrument hairspring that is easy to install according to claim 1, characterized in that: The limiting mechanism (7) comprises an insertion rod (701), a side block 1 (702) and a side block 2 (703); the side block 1 (702) and the side block 2 (703) are symmetrically arranged; the side block 1 (702) is respectively fixedly connected to both sides of the insertion rod (701); and the side block 2 (703) is respectively fixedly connected to both sides of the insertion rod (701); the side block 1 (702) and the side block 2 (703) are respectively located at both ends of the insertion rod (701); the insertion rod (701) and the side block 1 (702) are movably connected to the inside of the limiting frame (3); and the side block 2 (703) is located on the outside of the limiting frame (3).

6. The instrument hairspring that is easy to install according to claim 5, characterized in that: Two groups of symmetrical guide rods (9) are fixedly connected inside the limit frame (3), and the ends of the guide rods (9) extend to the outside of the limit frame (3). The insertion rod (701) is located on the opposite side of the guide rod (9). The guide rod (9) passes through the side block 1 (702) and the side block 2 (703) in sequence, and the guide rods (9) are movably connected to the side block 1 (702) and the side block 2 (703).

7. The instrument hairspring that is easy to install according to claim 6, characterized in that: The limiting mechanism (7) further comprises a compression spring (704), wherein the compression spring (704) is symmetrically arranged and respectively sleeved on the outer side of the guide rod (9), one end of the compression spring (704) is fixedly connected to the inside of the limiting frame (3), and the other end of the compression spring (704) is fixedly connected to one end of the edge block (702).

8. The instrument hairspring that is easy to install according to claim 7, characterized in that: A group of symmetrical insertion holes (10) are provided on the outer side of the limiting column (11), and the front end of the insertion rod (701) is configured with a beveled surface, the beveled surface faces downward, and the front end of the insertion rod (701) is adapted to the insertion hole (10).

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