CN219048559U - Sliding locking device, connecting assembly and cone beam tomography equipment - Google Patents

Abstract

The utility model discloses a sliding locking device, a connecting assembly and cone beam tomography equipment, wherein the sliding locking device is used for connecting a first connecting piece and a second connecting piece, the first connecting piece and the second connecting piece can be connected in a sliding way, and the sliding locking device comprises: the locking block can slide between a locking position and a release position and is arranged on the first connecting piece, and the locking block is abutted against the second connecting piece at the locking position so as to limit the relative sliding of the first connecting piece and the second connecting piece; the locking block is prevented from moving away from the first connecting piece in the release position so as to allow the first connecting piece and the second connecting piece to slide relatively; the button is arranged on the first connecting piece and is in transmission connection with the locking block so as to enable the locking block to be switched between a locking position and a releasing position; the positioning module is used for locking the button to enable the locking block to be in a locking position. The sliding locking device provided by the embodiment of the utility model has the advantages of strong applicability, high stability, convenience in operation and the like.

Description

Sliding locking device, connecting assembly and cone beam tomography equipment

Technical Field

The utility model relates to the field of medical equipment, in particular to a sliding locking device, a connecting assembly with the sliding locking device and cone beam tomography equipment with the sliding locking device or the connecting assembly.

Background

CBCT (Cone beam Computed Tomography ) is a cone beam computed tomography apparatus, which is based on the principle that an X-ray generator makes annular digital shots around an object with a low amount of radiation, and then acquires three-dimensional images after computer reconstruction of data obtained in a cross-set after multiple digital shots around the object. The application of CBCT brings a drastic development to the diagnosis of various hard tissue diseases of the oral cavity, the dental surface.

Because of the CBCT imaging principle, the patient's head needs to be positioned accurately and to remain in a fixed position during the imaging process. The head is typically positioned by simultaneously securing the patient's mandible and hindbrain scoop. In the process of placing the head of the patient, an operator needs to operate the two hands simultaneously, adjusts the head to a proper position, and locks the jaw support again, so that the influence on the image quality caused by shaking of the head of the patient is avoided.

The sliding locking device of the jaw support of the CBCT in the related art adopts a plurality of gears to adjust the position of the jaw support, the flexibility is poor, and the jaw support after locking is easy to shake, so that the stability of the jaw support is affected.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the sliding locking device which has the advantages of strong applicability, high stability, convenient operation and the like.

The utility model also provides a connecting assembly with the sliding locking device.

The utility model also provides cone beam tomography equipment with the sliding locking device or the connecting assembly.

To achieve the above object, an embodiment according to a first aspect of the present utility model proposes a slide lock device for connection between a first link and a second link, the first link and the second link being slidably connected, comprising: the locking block can slide between a locking position and a releasing position and is arranged on the first connecting piece, and the locking block abuts against the second connecting piece at the locking position so as to limit the first connecting piece and the second connecting piece to slide relatively; the locking block is prevented from avoiding the first connecting piece in the release position so as to allow the first connecting piece and the second connecting piece to slide relatively; the button is arranged on the first connecting piece and is in transmission connection with the locking block so as to enable the locking block to be switched between the locking position and the release position; and the positioning module is used for locking the button so that the locking block is in the release position.

The sliding locking device provided by the embodiment of the utility model has the advantages of strong applicability, high stability, convenience in operation and the like.

In addition, the slide locking device according to the above embodiment of the present utility model may further have the following additional technical features:

according to one embodiment of the utility model, the button has a pressed position in which the lock block is in the released position and a raised position in which the lock block is in the locked position.

According to an embodiment of the present utility model, the slide locking device further includes: the sliding block is provided with a guide inclined plane and is connected with the button; the guide post is connected with the locking block; the transmission piece is arranged on the guide post and is movably matched with the guide inclined plane; the elastic piece normally drives the locking block to move towards the locking position, wherein the guide inclined surface is configured to drive the locking block to move to the release position through the cooperation of the guide inclined surface and the transmission piece when the button moves from the lifting position to the pressing position; and when the button moves from the pressing position to the lifting position, the locking block moves to the locking position under the drive of the elastic piece.

According to one embodiment of the present utility model, the sliding locking device further includes a guide block, a guide rail and a guide hole are provided on the guide block, the guide block is provided in the first connecting member, the slider is slidably engaged with the guide rail, the guide post is slidably engaged in the guide hole, and the elastic member is a compression spring and is clamped between the guide block and the locking block.

According to one embodiment of the utility model, the slide block is provided with an avoidance groove for avoiding the guide post.

According to one embodiment of the utility model, the positioning module comprises a push latch and a locking tongue, one of the push latch and the locking tongue being connected to the first connector and the other being connected to the button, the locking tongue fitting within the push latch when the button is in the pushed position, the push latch being configured to lock the locking tongue when the button is moved from the raised position to the pushed position and to release the locking tongue when the button is again pushed in the pushed position.

According to one embodiment of the utility model, the transmission member is a bearing or a roller.

According to one embodiment of the present utility model, the lock block includes a lock block body and a damping pad provided at a side surface of the lock block body facing the second connection member.

An embodiment according to a second aspect of the present utility model proposes a connection assembly comprising: a first connector and a second connector, the first connector and the second connector being slidably connected; a slide lock device according to an embodiment of the first aspect of the present utility model.

According to the connecting assembly provided by the embodiment of the utility model, the sliding locking device provided by the embodiment of the first aspect of the utility model has the advantages of strong applicability, high stability, convenience in operation and the like.

An embodiment according to a third aspect of the utility model proposes a cone beam tomography apparatus comprising a sliding locking device according to an embodiment of the first aspect of the utility model or a connection assembly according to an embodiment of the second aspect of the utility model.

According to the cone beam tomography device of the embodiment of the utility model, the sliding locking device according to the embodiment of the first aspect of the utility model or the connecting assembly according to the embodiment of the second aspect of the utility model is utilized, so that the cone beam tomography device has the advantages of high applicability, high stability, convenience in operation and the like.

Additional aspects and advantages of the utility model 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 utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

fig. 1 is a schematic structural view of a cone beam tomography apparatus according to an embodiment of the present utility model.

Fig. 2 is a schematic structural view of a sliding locking device applied to jaw support positioning according to an embodiment of the present utility model.

Fig. 3 is an exploded view of the slide locking device according to an embodiment of the present utility model applied to jaw rest positioning.

Fig. 4 is an exploded view of a slide locking device according to an embodiment of the present utility model.

Fig. 5 is a schematic structural view of a slide locking device according to an embodiment of the present utility model.

Fig. 6 is a schematic structural view of a slide locking device according to an embodiment of the present utility model.

Fig. 7 is a cross-sectional view of a slide locking device according to an embodiment of the present utility model applied to jaw rest positioning.

Fig. 8 is a cross-sectional view of a slide locking device according to an embodiment of the present utility model applied to jaw rest positioning.

Fig. 9 is a cross-sectional view of a slide locking device according to an embodiment of the present utility model.

Fig. 10 is a cross-sectional view of a slide locking device according to an embodiment of the present utility model.

Fig. 11 is a schematic view of an assembly process of the slide locking device according to the embodiment of the present utility model.

Reference numerals: cone beam tomography apparatus 1, connection assembly 2, slide lock device 10, slide rod 100, guide groove 110, jaw rest 120, fixing rod 200, slide groove 210, lock block 300, lock block main body 311, damping pad 312, guide post 320, transmission 321, button 400, slider 410, guide slope 411, avoidance groove 412, elastic member 500, guide block 600, guide rail 610, guide hole 620, push type lock catch 710, lock tongue 720, guide holder 800, guide bearing 810, head rest 20.

Detailed Description

The present application is made based on the discovery and recognition by the inventors of the following facts and problems:

because of the CBCT imaging principle, the patient's head needs to be positioned accurately and remain in a fixed position during the imaging process. The head is typically positioned by simultaneously securing the patient's mandible and hindbrain scoop. In the process of placing the head of the patient, an operator needs to operate the two hands simultaneously, adjusts the head to a proper position, and locks the jaw support again, so that the influence on the image quality caused by shaking of the head of the patient is avoided.

The sliding locking device of the jaw support of the CBCT in the related art adopts a plurality of gears to adjust the position of the jaw support, the flexibility is poor, and the jaw support after locking is easy to shake, so that the stability of the jaw support is affected.

Specifically, the sliding locking device of the jaw support of the CBCT in the related art is provided with a plurality of arranged gear grooves, positioning protrusions connected with the jaw support are optionally matched among the plurality of gear grooves, although the jaw support can be adjusted at the positions of the plurality of gear grooves, the jaw support cannot be adjusted to the positions between the two gear grooves, the adjusting precision is poor, the overall flexibility and the applicability of adjustment are poor, the jaw support is positioned by adopting the matching of the positioning protrusions and the positioning grooves, the positioning protrusions shake in the positioning grooves easily, the jaw support is easy to shake, and the stability of the jaw support is affected.

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The embodiment of the utility model provides a sliding locking device which is used for connecting a first connecting piece and a second connecting piece, wherein the first connecting piece and the second connecting piece are connected in a sliding mode, and the sliding locking device comprises a locking block, a button and a positioning module.

The locking block is slidable between a locking position and a releasing position and is arranged on the first connecting piece, and the locking block is abutted against the second connecting piece at the locking position so as to limit the relative sliding of the first connecting piece and the second connecting piece. The locking block is clear of the first connector in the release position to permit relative sliding movement of the first connector and the second connector. The button is arranged on the first connecting piece and is in transmission connection with the locking block so as to enable the locking block to be switched between the locking position and the releasing position.

The positioning module is used for locking the button so that the locking block is in the release position.

According to the sliding locking device provided by the embodiment of the utility model, the locking block is arranged between the locking position and the releasing position and can be in contact with the second connecting piece in the locking position and avoid the second connecting piece in the releasing position, so that the locking block can be driven between the locking position and the releasing position through the operating button. Therefore, the second connecting piece can be locked and released in a sliding manner, and due to the fact that the second connecting piece is locked in a locking block abutting manner, compared with the mode that a plurality of gear grooves are adopted to position the second connecting piece in the related art, on one hand, the position of the second connecting piece cannot be limited by the gear grooves, the position of the second connecting piece is adjusted more finely and flexibly, applicability is stronger, on the other hand, the second connecting piece is enabled to be evenly and stably stressed after being locked, shaking of the second connecting piece after being locked is avoided, and stability of the second connecting piece after being locked is improved.

In addition, through adopting the button that can press and the driven mode of slidable locking piece, operating personnel can move the button through simple pressing operation, drives the locking piece and slides to required position to realize the locking and the release of second connecting piece, easy operation is convenient.

And through setting up the orientation module, can utilize the orientation module locks the button in order to keep the locking piece in the release position, make operating personnel need not to keep the button press, the operation is more convenient.

Wherein the first and second connection members may be rod-shaped, block-shaped, flat-shaped, etc., and the specific shape thereof is not excessively limited.

The following describes a sliding locking apparatus 10 according to an embodiment of the present utility model with reference to fig. 1 to 11, and describes a specific structure of the sliding locking apparatus 10 in combination with a scenario in which the same is applied to CBCT jaw rest position adjustment.

As shown in fig. 1 and 2, the slide locking device 10 according to the embodiment of the present utility model includes a locking block 300 and a button 400.

The second connecting member 100 is a first connecting rod, and the first connecting member 200 is a second connecting rod. That is, the following structure of the locking assembly 10 applied to the slide bar 100 and the fixed bar 200 is equally applicable to the first and second connection members. Moreover, the locking assembly 10 may serve at least the same purpose as the first and second connectors with respect to the functions of the sliding rod 100 and the fixed rod 200.

In addition, it should be noted that the slide bar 100 and the fixed bar 200 may be opposite, that is, one of the first and second connection members may be fixed relative to the other and the other may slide relative to the other. In the following embodiment, if the sliding rod 100 is replaced with the second connector and the fixing rod 200 is replaced with the first connector, the second connector is not necessarily fixed, and is not necessarily sliding, and the two connectors may slide relatively.

The fixed rod 200 is provided with a chute 210, and the sliding rod 100 is slidably fitted in the chute 210. The lock block 300 may be slidably disposed between a locked position and a released position, the fixed rod 200 may be a center-controlled structure such as a square tube (including rectangular and square), or a partial cavity may be provided, such that the lock block 300 is disposed in the cavity of the fixed rod 200, the lock block 300 abuts the sliding rod 100 in the locked position to limit sliding of the sliding rod 100 in the sliding slot 210, and the lock block 300 is retracted from the sliding rod 100 in the released position to allow the sliding rod 100 to slide in the sliding slot 210. The button 400 is provided on the fixing lever 200 and the locking block 300 is drivingly connected.

According to the slide lock device 10 of the embodiment of the present utility model, the lock block 300 is abutted against the slide rod 100 in the lock position and the lock block 300 is retracted from the slide rod 100 in the release position by the lock block 300 slidably provided between the lock position and the release position, so that the lock block 300 can be driven between the lock position and the release position by operating the button 400. For example, when the slide bar 100 needs to be unlocked, the button 400 may be pressed to move the lock block 300 to the release position, so that the lock block 300 is avoided from the slide bar 100, and at this time, the slide bar 100 loses the restriction of the lock block 300 and is allowed to slide relative to the fixed bar 200, thereby unlocking the slide bar 100. When the slide bar 100 needs to be locked, the button 400 is lifted up to move the lock block 300 to the lock position, and the lock block 300 abuts against the slide bar 100 to restrict the sliding of the slide bar 100, thereby locking the slide bar 100. Therefore, the sliding rod 100 can be locked and released in a sliding manner, and the sliding rod 100 is locked in a mode of abutting the locking block 300, so that compared with the mode of positioning the sliding rod by adopting a plurality of gear grooves in the related art, the position of the sliding rod 100 can not be limited by the gear grooves, the position of the sliding rod 100 can be adjusted more finely and flexibly, the applicability is stronger, the stress of the sliding rod 100 after locking can be uniform and stable, the sliding rod 100 is prevented from shaking after locking, and the stability of the sliding rod 100 after locking is improved.

In addition, by adopting the mode of transmission of the push button 400 and the slidable locking block 300, an operator can move the push button 400 by simply pressing the push button to drive the locking block 300 to slide to a required position, thereby realizing locking and releasing of the sliding rod 100, and the operation is simple and convenient.

Therefore, the sliding locking apparatus 10 according to the embodiment of the utility model has the advantages of strong applicability, high stability, convenient operation and the like.

Specifically, as shown in fig. 5, the button 400 has a raised position, and the lock block 300 is located at the lock position when the button 400 is in the raised position. As shown in fig. 6, the button 400 has a pressed position, and the lock block 300 is located at a released position when the button 400 is in the pressed position. Thus, the sliding rod 100 can be unlocked when the button 400 is pressed, and the sliding rod 100 can be locked when the button 400 is lifted, so that an operator does not need to keep pressing the button 400 when locking the sliding rod 100, and the operation of the operator is facilitated.

More specifically, as shown in fig. 4 to 10, the slide locking device 10 further includes a slider 410, a guide post 320, a transmission member 321, and an elastic member 500. The slider 410 is provided with a guide slope 411, and the slider 410 is connected to the button 400. The guide post 320 is coupled to the lock block 300. The driving member 321 is arranged on the guide post 320 and can slide with the guide inclined plane 411

And/or rotatably engaged. The elastic member 500 normally drives the locking block 300 to move toward the locking position, and the guide inclined surface 411 is configured such that when the push button 400 is moved from the raised position to the pressed position, the push button is slidably moved with the transmission member 321 via the guide inclined surface 411

And/or rotatably engaged and driven by the guide post 320 to move the lock block 300 to the release position; when the button 400 is moved from the pressed position to the lifted position, the lock block 300 is moved to the locked position by the elastic member 500. Thus, when the button 400 is pressed, the button 400 drives the slider 410 to slide, and the guide inclined surface 411 of the slider 410 passes through the transmission member

321 are matched to drive the transmission member 321 to move away from the sliding rod 100, so that the transmission member 321 relatively moves to one end of the 0 guide inclined plane 411, and the guide post 320 drives the locking block 300 to overcome the elasticity of the elastic member 500 to release

The position moves. During the lifting of the push button 400, the locking block 300 moves to the locking position under the action of the elastic member 500, and drives the transmission member 321 to move towards the direction approaching the sliding rod 100 through the guide post 320, the transmission member 321 cooperates with the slide block 410 through the guide inclined surface 411 to drive the slide block 410 and the push button 400 to lift, and finally the locking block 300 reaches the locking position

In the locking position, the elastic member 500 presses the locking block 300 against the sliding rod 100 by elastic force, thereby locking the sliding rod 100.

Therefore, locking and releasing between the sliding rod 100 and the fixed rod 200 can be conveniently realized, the sliding rod 100 can utilize the elastic piece 500 to compress the locking block 300 on the sliding rod 100 during locking, the locking effect on the sliding rod 100 is ensured, the sliding rod 100 is more stable in stress, the sliding rod 100 is prevented from shaking, and the stability of the sliding rod 100 during locking is improved.

0 specifically, the lock block 300 and the guide post 320 may be integrally formed. The number of the transmission parts 321 can be two and the transmission parts are guided

The pillars 320 are disposed opposite each other in the circumferential direction.

Advantageously, as shown in fig. 4 to 10, the slide locking device 10 further includes a guide block 600, the guide block 600 is provided with a guide rail 610 and a guide hole 620, the guide block 600 is provided in the cavity of the fixing rod 200, and the slider 410 is slidably coupled with the guide rail

The rail 610 is engaged, the guide post 320 is slidably engaged in the guide hole 620, and the elastic member 500 is a compression spring and is clamped between the guide 5 block 600 and the locking block 300. Specifically, the guide post 320 and the guide hole 620 are clearance fit. Guide rail 610

Is in clearance fit with slider 410. In this way, the guide block 600 can be used to locate and guide the slider 410 and the guide post 320, so as to locate and guide the button 400 and the lock block 300, and the slider 410, the guide post 320 and the lock block 300 can be integrated on the guide block 600, so as to facilitate the assembly of the sliding lock device 10.

Optionally, as shown in fig. 4, a dodging groove 412 for dodging the guide post is provided on the slider 410. In this way, the 0-direction column 320 can be conveniently led to pass through the avoidance groove 412 to connect the locking block 300 and the transmission member 321, so that the sliding block 410 can move in the process of moving

Avoiding the guide post 320.

More advantageously, as shown in fig. 4 and 5, the positioning module includes a push button 710 and a latch 720, one of the push button 710 and the latch 720 is connected to the fixing rod 200, and the other is connected to the button 400, the latch 720 is engaged in the push button 710 when the button 400 is in the pushed position, and the latch 720 extends out of the push button 710 when the button 400 is in the lifted position. The push button 710 is configured to lock the latch 720 when the button 400 is moved from the raised position to the pushed position, and to release the latch 720 when the button 400 is pressed again in the pushed position, the button 400 being moved from the pushed position to the raised position.

This allows the push button 400 to be maintained in either the depressed or raised position by the push button 710 and the locking tongue 720, eliminating the need for the operator to maintain the push button 400 in unlocking the slide bar 100. Specifically, when the operator needs to unlock the sliding rod 100, pressing the button 400 moves the locking block 300 to the release position, and simultaneously pressing the lock catch 710 locks the lock tongue 720 to maintain the positions of the slider 410, the locking block 300 and the button 400, at this time, the operator can release the hand pressing the button 400, after the operator adjusts the sliding rod 100 to the desired position, pressing the button 400 again releases the lock tongue 720 by pressing the button 400, the slider 410 is reset under the pushing of the lock tongue 720, and simultaneously drives the locking block 300 to move to the locking position, and drives the button 400 to move to the lifting position.

Specifically, as shown in fig. 4, the button 400 is connected to the slider 410 by a screw fastener, the driving member 321 is mounted on the guide post 320 by a screw fastener, the latch bolt 720 is mounted on the slider 410 by a screw fastener, and the push button 710 is mounted on the guide block 600 by a screw fastener.

Further, as shown in fig. 9 and 10, the lock block 300 includes a lock block body 311 and a damping pad 312, the damping pad 312 being provided at a side surface of the lock block body 311 facing the slide bar 100. This can prevent slip and hard collision between the lock block 300 and the slide rod 100 by using the damping pad 312, and further improve stability and reliability of locking the slide rod 100.

Specifically, the lock block 300 has an adaptation groove adapted to the shape of the side wall of the slide rod 100. This can increase the friction between the lock block 300 and the slide rod 100, further improving the stability of the lock slide rod 100.

The elastic member 500 may be a compression spring. It will be appreciated by those skilled in the art that the amount of locking force applied to the sliding rod 100 is primarily dependent upon the spring force of the compression spring.

Specifically, as shown in fig. 11, at the time of assembly, one end of the elastic member 500 is first fitted into the first positioning hole of the lock block 300. The guide post 320 is inserted into the guide hole 620 of the guide block 600, and the other end of the elastic member 500 abuts against the guide block 600. The driving member 321 is then fixed to both sides of the guide post 320 by screws, and the locking block 300 and the driving member 321 are respectively located at both sides of the guide block 600. The slider 410 is inserted into the guide rail 610 of the guide block 600 and is inserted outside the guide post 320, and the driving member 321 is slidably or rotatably engaged with the guide slope 411 of the slider 410. The tongue 720 is then screwed to the slider 410, the mounting plate with the push-button 710 is screwed to the guide block 600, and finally the button 400 is screwed to the slider 410.

Alternatively, the driving member 321 is a bearing or a roller. The driving member 321 is in rolling fit with the guiding inclined plane.

As shown in fig. 4 and 5, the lock block 300 has an abutment surface adapted to the slide rod 100 for abutment against the slide rod 100, the slide rod 100 is flat rod-shaped, the lock block 300 abuts from a side thereof, the abutment surface of the lock block 300 is concave, and a damping pad 312 is provided on a surface of the concave for better abutment with the slide rod 100.

The guide post 320 is disposed at a side of the locking block 300 away from the sliding rod 100, and one end of the guide post 320 is connected with the locking block 300, and the other end is connected with a transmission member 321, specifically, a rotation bearing.

One side surface of the guide block 600 is provided with a groove for sliding the locking block 300 in or out, the groove can at least partially accommodate the locking block 300, the other side surface is provided with a guide rail 610, and the bottom surface of the groove is provided with a guide hole 620 penetrating through the guide block 600; the guide post 320 penetrates the guide hole 620 such that the locking block 300 is located at one side of the groove and the driving member 321 is located at a side of the guide block 600 remote from the groove.

The slider 410 is provided with a structure matched with the guide rail 610, so that the slider 410 can slide along the guide rail 610, the structure is a sliding strip extending along the length direction of the slider 410 and extending to two ends of the slider 410, the guide rail 610 extends from one end of the guide block 600 to the other end, and the sliding strip is matched with the guide rail 610, so that the slider 410 is prevented from sliding out of the guide block 600 to the greatest extent.

The number of the elastic members 500 is specifically 2, two spring mounting holes are formed on two sides of the guide post 320 on the locking block 300, two spring mounting holes are also formed on the guide block 600, the spring mounting holes of the former are corresponding to those of the latter, one ends of the two springs are respectively mounted in the two spring mounting holes of the locking block 300, and the other ends of the two springs are respectively abutted to the bottom surfaces of the two spring mounting holes of the guide block 600.

The slider 410 is provided with a U-shaped groove, the slider 410 is sleeved outside the guide post 320 through the U-shaped groove, the guide inclined surface 411 of the slider 410 extends along the direction of the slider 410, so that the transmission member 321 is abutted on the guide inclined surface 411, and in the sliding process of the slider 410, the transmission member 321 moves along the length direction of the guide post 320, and the locking block 300 at the other end is pushed into or pushed out of the groove containing the locking block 300 on the guide block 600.

The guide block 600 is fixed on the fixing rod 200, the guide block 600 fixed on the mounting plate of the push type latch 710 is positioned at the extending end of the sliding rail 610, the latch 720 is fixed at the end of the slider 410 through the latch mounting plate, and the guide post 320 is encapsulated inside the U-shaped groove of the slider 410, so that the guide post 320, the slider 410 and the like can be prevented from being separated from the guide block 600.

The guide inclined plane 411 of the slider 410 is a low surface near one end of the push type lock catch 710, and is a high surface far from one end of the push type lock catch 710, the slider 410 moves towards the push type lock catch 710, the driving member 321 is pushed to further compress the spring, the locking block 300 is driven to slide into the groove of the guide block 600, the locking block 300 is separated from the sliding rod 100, unlocking is achieved, the slider 410 is positioned and locked through the cooperation of the push type lock catch 710 and the lock tongue 720, and after the locking block 300 is separated from the sliding rod 100, when the position of the sliding rod 100 is adjusted, the sliding locking device does not need to be manually operated.

When the slider 410 is pressed again, the push type latch 710 cooperates with the latch 720 to push the slider 410 to move away from the push type latch 710, under the elastic pressure of the elastic member 500, the transmission member 321 and the locking block 300 move toward the sliding rod 100, and when the slider 410 moves away from the limit position of the push type latch 710, the locking block 300 presses the sliding rod 100 to lock the relative position of the sliding rod 100 and the fixing rod 200. Under the condition that the sliding block 410 is pushed by no external force, the pressure between the guide inclined surface 411 and the sliding bearing can prevent the sliding block 410 from moving towards the direction approaching the push type lock catch 710, so that the sliding rod 100 is locked, and the locking position between the sliding rod 100 and the fixed rod 200 is prevented from being changed due to shaking.

When the slider 410 is pushed again to the limit position of the slider 410 near the push button 710, the slider 410 is prevented from moving to the other end by the cooperation of the push button 710 and the latch 720, so that the purpose of unlocking the slide rod 100 is achieved.

In addition, the button 400 is mounted at one end of the slider 410 near the upper surface, and the pushing operation is more convenient and labor-saving than the pulling operation.

A connection assembly 2 according to an embodiment of the present utility model is described below with reference to fig. 1 to 11.

As shown in fig. 3, the connection assembly 2 includes a slide locking device 10, a slide rod 100, and a fixed rod 200. The first connector and the second connector are slidably connected.

The first connecting piece and the second connecting piece are rod-shaped, a sliding groove is formed in the first connecting piece, and the second connecting piece is slidably matched in the sliding groove.

Specifically, the connection assembly 10 further includes a guide holder 800, the guide holder 800 is installed in the fixed rod 200, a guide bearing 810 is disposed on the guide holder 800, and the guide bearing 810 abuts against the sliding rod 100. This guides and positions the sliding of the slide bar 100 by using the guide bearing 810, and reduces the friction force applied to the sliding of the slide bar 100.

Specifically, the guide bearings 810 may be provided in a plurality and arranged in a plurality of pairs spaced apart along the length of the sliding bar 100, each pair including one guide bearing 810 located at each side of the sliding bar 100. This can further improve the stability of the slide rod 100 when slid.

Advantageously, as shown in fig. 3, the slide bar 100 is provided with a guide groove 110, and a guide bearing 810 is slidably fitted in the guide groove 110. This can further guide the sliding of the slide bar 100 by the guide groove 110, and further improve the sliding stability of the slide bar 100.

Optionally, a jaw rest 120 is connected to the upper end of the sliding bar 100. Specifically, the jaw rest 120 is used to support and position the patient's mandible. In this way, the sliding locking device 10 can be used for adjusting the position of the jaw support 120, so that the jaw support 120 can be conveniently locked at a required position, the stability of the jaw support 120 is improved, and the position adjustment of the jaw support 120 is finer, more flexible, simpler and more convenient.

The cone beam tomography apparatus 1 according to the embodiment of the present utility model is described below. The cone beam tomography apparatus 1 according to the embodiment of the present utility model includes the slide locking device 10 according to the above-described embodiment of the present utility model.

The cone beam tomography apparatus 1 according to the embodiment of the present utility model has advantages of strong applicability, high stability, convenient operation, and the like by using the slide lock device 10 according to the above-described embodiment of the present utility model.

Specifically, the cone-beam tomography apparatus 1 may further include a head rest 20. The patient adjusts the position after sitting by first attaching the hindbrain to the head rest 20 and the operator moves the jaw rest 120 to the patient's mandibular position for positioning. Then, the button 400 is pressed to lock and fix the jaw support 120, so that the head of the patient can be ensured to be completely fixed front and back, and the cone beam tomography device 1 can conveniently shoot. After shooting is completed, the operator presses the button 400 again to release and pull back the jaw support 120, and the operator is separated from the mandibular position of the patient.

Other constructions and operations of the cone beam tomography apparatus 1 according to the embodiment of the present utility model are known to those skilled in the art and will not be described in detail herein.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A sliding locking device for locking between a first connector and a second connector, the first connector and the second connector being slidably connected, comprising:

the locking block can slide between a locking position and a releasing position and is arranged on the first connecting piece, and the locking block abuts against the second connecting piece at the locking position so as to limit the first connecting piece and the second connecting piece to slide relatively;

the locking block is prevented from avoiding the first connecting piece in the release position so as to allow the first connecting piece and the second connecting piece to slide relatively;

the button is arranged on the first connecting piece and is in transmission connection with the locking block so as to enable the locking block to be switched between the locking position and the release position;

and the positioning module is used for locking the button so that the locking block is in the release position.

2. The slide locking device of claim 1, wherein the button has a depressed position and a raised position, the lock block being in the released position when the button is in the depressed position and the lock block being in the locked position when the button is in the raised position.

3. The slide locking device according to claim 2, further comprising:

the sliding block is provided with a guide inclined plane and is connected with the button;

the guide post is connected with the locking block;

the transmission piece is arranged on the guide post and is movably matched with the guide inclined plane;

an elastic member which normally drives the lock block to move toward the lock position,

wherein the guide inclined surface is configured to drive the locking block to move to the release position through the cooperation of the guide inclined surface and the transmission piece when the button moves from the lifting position to the pressing position; and when the button moves from the pressing position to the lifting position, the locking block moves to the locking position under the drive of the elastic piece.

4. The slide locking device according to claim 3, further comprising a guide block, wherein a guide rail and a guide hole are provided on the guide block, the guide block is provided in the first connecting member, the slider is slidably engaged with the guide rail, the guide post is slidably engaged in the guide hole, and the elastic member is a compression spring and is clamped between the guide block and the locking block.

5. The slide lock device according to claim 3, wherein the slider is provided with a avoiding groove for avoiding the guide post.

6. The slide locking device of claim 2, wherein the positioning module includes a push latch and a locking tab, one of the push latch and the locking tab being connected to the first connector and the other being connected to the button, the locking tab fitting within the push latch when the button is in the pushed position, the push latch being configured to lock the locking tab when the button is moved from the raised position to the pushed position and to release the locking tab when the button is again pushed in the pushed position.

7. A slide locking device according to claim 3, wherein the transmission member is a bearing or a roller.

8. A connection assembly, comprising:

a first connector and a second connector, the first connector and the second connector being slidably connected;

the sliding locking device is according to any one of claims 1-7, the first connecting piece and the second connecting piece are rod-shaped, a sliding groove is formed in the first connecting piece, and the second connecting piece is slidably matched in the sliding groove.

9. The connection assembly of claim 8, further comprising a guide seat mounted within the first connector, the guide seat having a guide bearing disposed thereon, the guide bearing abutting the second connector.

10. Cone beam tomography apparatus, characterized by comprising a slide locking device according to any of claims 1-7 or a connection assembly according to claim 8 or 9.

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