Instrument cover weight mechanism

Abstract

The utility model discloses a kind of instrument protective cover counterweight mechanism, including left and right counterweight mechanism and the rotating shaft of connecting both, counterweight mechanism is installed on instrument rack, counterweight mechanism further include screw rod, spring seat, nut, mould spring, convex stop ring and concave stop ring are installed on screw rod, convex stop ring is located on mould spring upper end and is cooperated with concave stop ring to form the upper support of mould spring, stop block is set to rotating shaft seat side, blocking bolt is installed on support frame;The utility model utilizes mould spring elastic force balance protective cover gravitational moment, realizes counterweight, reduces the working strength of operator to open cover, realizes simple and compact structure, it is convenient to install, structure is convenient to adjust, stability is high service life is long, greatly reduce maintenance cost.

Description

Technical Field

[0001] This utility model belongs to the field of X-ray detection and relates to coating analysis instruments, especially a counterweight mechanism for an instrument protective cover. Background Technology

[0002] In the process of using X-rays to detect the thickness of electroplated layers, an X-ray generator emits X-rays, which are irradiated onto the surface of the sample through a specific collimating aperture. The electroplated layer absorbs the X-ray energy, and the outer electrons undergo transitions, releasing energy. The detection device detects the released energy, thereby calculating the thickness of the electroplated layer. In the coating analysis equipment used, a protective cover is required to shield the X-rays. The protective cover has a certain weight, and the current practice is to use a gas spring to support the protective cover. However, the gas spring has a short service life, suffers severe force attenuation, and has high maintenance costs. Therefore, it is necessary to find a mechanism or method to reduce the workload of operators when opening the cover. Utility Model Content

[0003] In view of this, to overcome at least one of the above-mentioned defects in the prior art, this utility model provides an instrument protective cover counterweight mechanism, including a left counterweight mechanism (a), a right counterweight mechanism (b), and a rotating shaft (c) connecting the left and right counterweight mechanisms. The left and right counterweight mechanisms are mounted on the instrument frame. The protective cover is connected to the left and right rotating shaft seats of the left and right counterweight mechanisms and rotates along the rotating shaft to open or close. The protective cover counterweight mechanism includes a left (right) side support frame and a left (right) rotating shaft seat. The left (right) rotating shaft seat is fixed to both ends of the rotating shaft passing through the ball support. The left (right) rotating shaft seat is connected to a screw connector head that realizes a certain angle of rotation and upward movement through a pivot pin. A connecting stop rod passes through the left (right) side support frame. The directional hole on the frame is connected to the upper end of the screw, and the lower end of the screw is connected to the screw connector head by a thread. The connecting stop and the screw move along the directional hole on the left (right) side of the support frame. A spring seat, nut, mold spring, convex retaining ring and concave retaining ring are installed on the screw. The convex retaining ring is located at the upper end of the mold spring. The convex retaining ring and the concave retaining ring cooperate to serve as the upper support of the mold spring. A stop block is provided next to the left (right) rotating shaft seat, and the blocking bolt is installed on the left (right) side of the support frame.

[0004] The protective cover counterweight mechanism uses the spring force of the mold to balance the gravitational torque of the protective cover. The magnitude of the balancing force can be adjusted by adjusting the nut, so that after the protective cover is opened to a certain angle, it automatically opens to the maximum angle by the spring force of the mold, and after the protective cover is closed to a certain angle, it closes to the closed state by its own weight.

[0005] According to the prior art described in the background section of this utility model, coating analysis instruments require a protective cover to shield X-rays. The protective cover has a certain weight, and the current practice is to use a gas spring to support the protective cover. However, the gas spring has a short service life, serious force attenuation, and high maintenance costs. In contrast, the instrument protective cover counterweight mechanism disclosed in this utility model provides counterweight to the protective cover, reducing the workload of operators when opening the cover. It has a simple and compact structure, is easy to install, and its structure is easy to adjust. It also has high stability and a long service life, greatly reducing maintenance costs.

[0006] In addition, the counterweight mechanism for the instrument protective cover disclosed in this utility model also has the following additional technical features: Furthermore, the directional hole on the support frame on the left (right) side is an elongated through hole, the length of which is consistent with the movement direction of the connecting stop and the screw.

[0007] Furthermore, the pivot pin is a stepped shaft structure, with its large-diameter end fixed to the corresponding mounting component via an interference fit between the hole and the shaft, and its small-diameter end used to connect other components. Furthermore, the spring seat has an annular groove at one end near the mold spring, and the lower end of the mold spring is embedded in the annular groove. Furthermore, the convex retaining ring is fixedly connected to the support frame on the left (right) side by bolts, and the inner ring of the concave retaining ring is provided with a stepped surface that matches the outer ring of the convex retaining ring. Furthermore, the left (right) pivot seat is provided with anti-slip teeth on the side connected to the protective cover, and the anti-slip teeth cooperate with the grooves on the surface of the protective cover. Furthermore, the end of the screw that connects to the screw connector is provided with an anti-loosening nut. Furthermore, the stop is made of an elastic material and has a buffer layer on its surface. Furthermore, the mold spring is a cylindrical helical compression spring made of chromium vanadium alloy steel with a blackened surface.

[0008] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0009] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which: Figure 1 This is a schematic diagram of the overall counterweight mechanism of this utility model; Figure 2 This is a schematic diagram of one side of the counterweight mechanism of this utility model; Figure 3This is a schematic diagram of the counterweight mechanism of this utility model; Figure 4 This is a cross-sectional schematic diagram of the counterweight mechanism of this utility model; Figure 5 This is a front cross-sectional schematic diagram of the counterweight mechanism of this utility model; Figure 6 This is a schematic diagram of the left-hand rotating shaft seat of this utility model; Among them, a-left counterweight mechanism b-right counterweight mechanism c-rotating shaft 1-left support frame 2-connecting stop bar 3-blocking bolt 4-screw connector 5-photoelectric switch mounting plate 6-left rotating shaft seat 7-stop block 8-concave stop ring 9-convex stop ring 10-mold spring 11-screw 12-spring seat 13-rotating pin 14-ball support 15-nut 16-photoelectric switch 17-opening light blocking plate. Detailed Implementation

[0010] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0011] In the description of this utility model, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "horizontal", "vertical", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0012] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection," "connection," "linking," "fitting," and "cooperation" should be interpreted broadly. For example, they can refer to a fixed connection, an integral connection, or a detachable connection; they can refer to the internal connection of two components; they can refer to a direct connection or an indirect connection through an intermediate medium; "fitting" can refer to the fit between surfaces, the fit between a point and a surface or a line and a surface, and also includes the fit between a hole and a shaft. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0013] The counterweight mechanism of the instrument protective cover of this utility model will now be described with reference to the accompanying drawings. Figure 1 , 2 This is a schematic diagram of the overall counterweight mechanism of this utility model; Figure 3 , 4Figure 5 is a cross-sectional schematic diagram of the counterweight mechanism of this utility model; Figure 6 This is a schematic diagram of the left-hand rotating shaft seat of this utility model.

[0014] According to embodiments of the present invention, such as Figure 2-5 The instrument includes a left counterweight mechanism (a), a right counterweight mechanism (b), and a rotating shaft (c) connecting the left and right counterweight mechanisms. The left and right counterweight mechanisms are mounted on the instrument frame. A protective cover is connected to the left and right rotating shaft seats of the left and right counterweight mechanisms and rotates along the rotating shaft to open or close. The protective cover counterweight mechanism includes a left (right) support frame and a left (right) rotating shaft seat. The left (right) rotating shaft seat is fixed to both ends of the rotating shaft passing through the ball support. The left (right) rotating shaft seat is connected to a screw connector that achieves rotation and upward movement at a certain angle via a pivot pin. A connecting stop bar is also included. The screw is connected to the upper end of the support frame on the left (right) side through the directional hole. The lower end of the screw is connected to the screw connector head by a thread. The connecting stop and the screw move along the directional hole on the support frame on the left (right) side. A spring seat, nut, mold spring, convex retaining ring and concave retaining ring are installed on the screw. The convex retaining ring is located at the upper end of the mold spring. The convex retaining ring and the concave retaining ring cooperate to serve as the upper support of the mold spring. A stop block is provided next to the left (right) rotating shaft seat. The blocking bolt is installed on the support frame on the left (right) side.

[0015] The protective cover counterweight mechanism uses the spring force of the mold to balance the gravitational torque of the protective cover. The adjusting nut (15) can adjust the magnitude of the balancing force, so that after the protective cover is opened to a certain angle, the protective cover will automatically open to the maximum angle by the spring force of the mold. After the protective cover is closed to a certain angle, the protective cover will close by its own weight.

[0016] According to an embodiment of this utility model, the directional hole on the support frame on the left (right) side is an elongated through hole, the length direction of which is consistent with the movement direction of the connecting stop and the screw.

[0017] According to an embodiment of the present invention, the pivot pin is a stepped shaft structure, with its large-diameter end fixed to the corresponding mounting component through an interference fit between the shaft and the hole, and its small-diameter end used to connect other components.

[0018] According to an embodiment of the present invention, the spring seat has an annular groove at one end near the mold spring, and the lower end of the mold spring is embedded in the annular groove. According to an embodiment of the present invention, the convex retaining ring is fixedly connected to the support frame on the left (right) side by bolts, and the inner ring of the concave retaining ring is provided with a stepped surface that matches the outer ring of the convex retaining ring. According to an embodiment of the present invention, the left (right) rotating shaft seat is provided with anti-slip teeth on the side connected to the protective cover, and the anti-slip teeth cooperate with the grooves on the surface of the protective cover. According to an embodiment of this utility model, the end of the screw connected to the screw connector is provided with an anti-loosening nut. According to an embodiment of the present invention, the stop is made of an elastic material and has a buffer layer on its surface. According to an embodiment of this utility model, the mold spring is a cylindrical helical compression spring made of chromium vanadium alloy steel with a blackened surface.

[0019] Any reference to "an embodiment," "embodiment," "illustrative embodiment," etc., means that the specific component, structure, or feature described in connection with that embodiment is included in at least one embodiment of this utility model. Such illustrative expressions throughout this specification do not necessarily refer to the same embodiment. Furthermore, when a specific component, structure, or feature is described in connection with any embodiment, it is claimed that implementing such a component, structure, or feature in connection with other embodiments falls within the scope of those skilled in the art.

[0020] Although the specific embodiments of this utility model have been described in detail with reference to several illustrative examples, it should be understood that those skilled in the art can devise various other modifications and embodiments that fall within the spirit and scope of the principles of this utility model. Specifically, reasonable variations and modifications can be made to the arrangement of components and / or dependent combinations within the scope of the foregoing disclosure, drawings, and claims without departing from the spirit of this utility model. The scope of these variations and modifications, except for those concerning components and / or layout, is defined by the appended claims and their equivalents.

Claims

1. A counterweight mechanism for an instrument protective cover, characterized in that: The counterweight mechanism includes a left counterweight mechanism (a) and a right counterweight mechanism (b). The protective cover is connected to the left and right side counterweight mechanisms via a rotating shaft (c). The left and right side counterweight mechanisms are mounted on the instrument frame. The protective cover is connected to the left and right rotating shaft seats of the left and right side counterweight mechanisms and can be opened or closed by rotating along the rotating shaft. The protective cover counterweight mechanism includes left / right side support frames and left / right rotating shaft seats. The left / right rotating shaft seats are fixed to both ends of the rotating shaft passing through the ball support. The left / right rotating shaft seats are connected to the screw connector head through a pivot pin to achieve a certain angle of rotation and upward movement. The connecting stop rod passes through the directional hole on the left / right side support frame and is connected to the upper end of the screw. The lower end of the screw is connected to the screw connector head through a thread. The connecting stop rod and the screw move along the directional hole on the left / right side support frame. A spring seat, nut, mold spring, convex retaining ring and concave retaining ring are installed on the screw. The convex retaining ring is located at the upper end of the mold spring. The convex retaining ring and the concave retaining ring cooperate to serve as the upper support of the mold spring. A stop block is provided next to the left / right rotating shaft seats. The blocking bolt is installed on the left / right side support frame.

2. The counterweight mechanism for the instrument protective cover according to claim 1, characterized in that: The directional holes on the left / right support frames are elongated through holes, and their length direction is consistent with the movement direction of the connecting stop and the screw.

3. The counterweight mechanism for the instrument protective cover according to claim 1, characterized in that: The pivot pin has a stepped shaft structure.

4. The counterweight mechanism for the instrument protective cover according to claim 1, characterized in that: The spring seat has an annular groove at one end near the mold spring, and the lower end of the mold spring is embedded in the annular groove.

5. The counterweight mechanism for the instrument protective cover according to claim 1, characterized in that: The convex retaining ring is fixedly connected to the left / right support frame by bolts, and the inner ring of the concave retaining ring is provided with a stepped surface that matches the outer ring of the convex retaining ring.

6. The counterweight mechanism for the instrument protective cover according to claim 1, characterized in that: The left / right pivot seat is provided with anti-slip teeth on the side connected to the protective cover, and the anti-slip teeth cooperate with the grooves on the surface of the protective cover.

7. The counterweight mechanism for the instrument protective cover according to claim 1, characterized in that: The end of the screw that connects to the screw connector is provided with an anti-loosening nut.

8. The counterweight mechanism for the instrument protective cover according to claim 1, characterized in that: The stop is made of an elastic material and has a buffer layer on its surface.

9. The counterweight mechanism for the instrument protective cover according to claim 1, characterized in that: The mold spring is a cylindrical helical compression spring made of chromium vanadium alloy steel with a blackened surface treatment.

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