Self-positioning device

Abstract

The utility model belongs to the technical field of guide wire control handle production, and particularly relates to a self-positioning device which comprises a fixing seat, an installation head is fixedly connected to the outer wall of the fixing seat, an installation cavity is formed in the installation head, a telescopic arm is connected in the installation cavity in a sliding mode, and the telescopic arm is connected to the outer wall of a wheel shaft in a clamped mode through a limiting ring. A pressing block is slidably connected into the mounting cavity, and an anti-abrasion device is arranged in the mounting cavity and comprises a movable cavity. According to the self-positioning device, through the arranged anti-abrasion device, when a telescopic arm is extruded to contact the bottom, an extrusion block is driven to slide backwards, and when the extrusion block is extruded to the inner wall of a movable cavity, the extrusion block drives a lifting column to move upwards, the lifting column is exposed out of the surface through a through hole, and a worker is warned that abrasion possibly occurs on a hidden part of a mounting head; after the second spring drives the lifting column to reset, repeated warning operation is facilitated, warning can be conducted in time, abrasion can be prevented, and the risk that the self-positioning device is damaged is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of guide wire control handle production, in particular to a self-positioning device. Background Art

[0002] The self-positioning device of the guidewire control handle usually works based on mechanical, electronic or hydraulic principles. These devices monitor the position and angle of the guidewire in real time through built-in sensors, encoders or other positioning technologies. When the doctor operates the handle to move the guidewire, the self-positioning device captures and records these changes and adjusts the position of the guidewire accordingly to ensure its accuracy and stability.

[0003] At present, in the prior art, a Chinese patent with announcement number CN207775433U discloses an embedded spinning adjustable filament positioning guide wire control device. The device can reduce wear and ensure the stability of the device by setting a gasket. However, in actual use, when the telescopic arm moving in the installation head adjusts the length of the guide wire wheel device, if it is not stopped or warned in time, continuous wear will cause damage to the telescopic arm or related components, which will require repair or replacement, increasing the cost and time of equipment maintenance. In view of this, we propose a self-positioning device. Utility Model Content

[0004] The main purpose of the utility model is to provide a self-positioning device, which can solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the self-positioning device proposed by the utility model comprises a fixing seat, the outer wall of the fixing seat is fixedly connected to a mounting head, the surface of the mounting head is provided with a through hole, the inner wall of the mounting head is provided with an anti-slip pattern, an installation cavity is arranged inside the mounting head, a telescopic arm is slidably connected in the installation cavity, the telescopic arm is clamped on the outer wall of the wheel axle through a limit ring, the wheel axle is fixedly connected to an adjustment screw, the adjustment screw is threadedly connected to a fixing nut, a pressing block is slidably connected in the installation cavity, an anti-wear device is arranged in the installation cavity, the anti-wear device is movably connected to a lubrication component, and the anti-wear device comprises:

[0006] An active cavity, wherein the inner wall of the mounting head is provided with an active cavity;

[0007] A fixed block is fixedly connected in the movable cavity.

[0008] Preferably, the outer wall of the wheel axle is slidably connected with a guide wheel, and a guide wheel fixing piece is provided on the wheel axle.

[0009] Preferably, a spring 1 is fixedly connected in the movable cavity, and the movable cavity is elastically connected to the extrusion block through the spring 1. When the telescopic arm is squeezed and touches the bottom, the extrusion block is driven to slide backward.

[0010] Preferably, a lifting column is slidably connected in the fixed block, and the lifting column is elastically connected to the movable cavity through a fixedly connected spring 2. The lifting column is slidably connected in the through hole. When the extrusion block is squeezed to the inner wall of the movable cavity, the upper surface of the extrusion block drives the lifting column to move upward, and the lifting column leaks out of the surface through the through hole, alerting the staff that wear may occur in the hidden part of the installation head.

[0011] Preferably, the lubrication assembly comprises a fixed disc, the fixed disc is fixedly connected in the movable cavity, and a rotating rod is rotatably connected in the fixed disc.

[0012] Preferably, the rotating rod is arranged behind the extrusion block, the rotating rod is hinged with a hinged rod, and the end of the hinged rod away from the rotating rod is hinged with a lubrication cylinder. When the extrusion block moves backward, the extrusion rotating rod is deflected, and the movement of the rotating rod indirectly drives the rotation connection of the lubrication cylinder through the transmission of the hinged rod.

[0013] The utility model provides a self-positioning device. It has the following beneficial effects:

[0014] (1) The self-positioning device is provided with an anti-wear device. When the telescopic arm is squeezed and touches the bottom, it drives the squeezing block to slide backward. When the squeezing block is squeezed to the inner wall of the movable cavity, the upper surface of the squeezing block drives the lifting column to move upward. The lifting column leaks out of the surface through the through hole, warning the staff that wear may occur in the hidden part of the installation head. After the lifting column is reset by the spring 2, it is convenient to perform warning operations multiple times, which can timely warn to prevent wear and prevent the risk of damage to the self-positioning device.

[0015] (2) The self-positioning device is provided with a lubrication assembly. When the extrusion block moves backward, the extrusion rotating rod is deflected. The movement of the rotating rod indirectly drives the rotation connection of the lubrication cylinder through the articulated rod transmission. The lubricant in the lubrication cylinder can form a lubricating film between the telescopic arm and the moving parts of the wire guide wheel device, effectively reducing the direct contact and friction between them, improving the operating performance, and enhancing the stability of the subsequent self-positioning device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a partial structural schematic diagram of the utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the installation cavity of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the anti-wear device of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the lubrication component of the utility model.

[0022] Description of Figure Numbers:

[0023] 1. Fixed seat; 2. Mounting head; 201. Through hole; 202. Anti-skid pattern; 3. Mounting cavity; 4. Telescopic arm; 5. Axle; 6. Adjusting screw; 601. Guide wheel; 602. Guide wheel fixing piece; 7. Fixing nut; 701. Pressing block; 8. Limiting ring; 9. Anti-wear device; 91. Movable cavity; 92. Fixed block; 93. Extrusion block; 94. Spring 1; 95. Lifting column; 96. Spring 2; 10. Lubrication assembly; 101. Fixed disc; 102. Rotating rod; 103. Articulated rod; 104. Lubrication cylinder.

[0024] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-Figure 5The utility model proposes a self-positioning device, including a fixing seat 1, a mounting head 2 is fixedly connected to the outer wall of the fixing seat 1, a through hole 201 is opened on the surface of the mounting head 2, an anti-slip pattern 202 is opened on the inner wall of the mounting head 2, a mounting cavity 3 is arranged inside the mounting head 2, a telescopic arm 4 is slidably connected in the mounting cavity 3, the telescopic arm 4 is clamped on the outer wall of the wheel shaft 5 through a limiting ring 8, the wheel shaft 5 is fixedly connected to an adjusting screw 6, the outer wall of the wheel shaft 5 is slidably connected to a guide wheel 601, a guide wheel fixing piece 602 is arranged on the wheel shaft 5, and the adjusting screw 6 is screwed to the outer wall of the wheel shaft 5. A fixing nut 7 is connected with the thread, and a clamping block 701 is slidably connected in the installation cavity 3. The above-mentioned telescopic arm 4, adjusting screw 6 and clamping block 701 are similar to the principles mentioned in the Chinese patent with authorization announcement number CN207775433U (an embedded spinning adjustable filament positioning and guiding wire control device), and the same effect is achieved. It is an existing public technical means in this field and will not be elaborated here. An anti-wear device 9 is arranged in the installation cavity 3, and the anti-wear device 9 is movably connected with a lubrication component 10, and the anti-wear device 9 includes a movable cavity 91.

[0027] In the embodiment of the utility model, in order to be able to timely warn to prevent wear and prevent the risk of damage to the self-positioning device, specifically, an active cavity 91 is opened on the inner wall of the installation head 2, and a fixed block 92 is fixedly connected to the active cavity 91, and a spring 94 is fixedly connected to the active cavity 91. The active cavity 91 is elastically connected to the extrusion block 93 through the spring 94. When the telescopic arm 4 is squeezed and touches the bottom, the extrusion block 93 is driven to slide backward, and a lifting column 95 is slidably connected to the fixed block 92, and the lifting column 95 is elastically connected to the active cavity 91 through a fixedly connected spring 2 96. The lifting column 95 is slidably connected in the through hole 201. When the extrusion block 93 is squeezed to the inner wall of the active cavity 91, the upper surface of the extrusion block 93 drives the lifting column 95 to move upward, and the lifting column 95 leaks out of the surface through the through hole 201, warning the staff that wear may occur in the hidden part of the installation head 2.

[0028] Furthermore, in order to improve the operating performance and enhance the stability of the subsequent self-positioning device, specifically, the lubrication assembly 10 includes a fixed disc 101, which is fixedly connected in the movable cavity 91, and a rotating rod 102 is rotatably connected in the fixed disc 101, and the rotating rod 102 is arranged behind the extrusion block 93, and the rotating rod 102 is hinged with an articulated rod 103, and a lubrication cylinder 104 is hinged at one end of the articulated rod 103 away from the rotating rod 102. When the extrusion block 93 moves backward, the extrusion rotating rod 102 is deflected, and the movement of the rotating rod 102 indirectly drives the rotation connection of the lubrication cylinder 104 through the transmission of the articulated rod 103.

[0029] When the telescopic arm 4 is pressed and touches the bottom, the extrusion block 93 is driven to slide backward. When the extrusion block 93 is pressed to the inner wall of the movable cavity 91, the upper surface of the extrusion block 93 drives the lifting column 95 to move upward. The lifting column 95 leaks out of the surface through the through hole 201, warning the staff that wear may occur in the hidden part of the installation head 2. After the lifting column 95 is reset by the spring 2 96, it is convenient to perform warning operations multiple times, which can timely warn to prevent wear and prevent the risk of damage to the self-positioning device. When the extrusion block 93 moves backward, the deflection of the extrusion rotating rod 102 is squeezed. The activity of the rotating rod 102 indirectly drives the rotation connection of the lubricating cylinder 104 through the transmission of the hinged rod 103. The lubricant in the lubricating cylinder 104 can form a lubricating film between the telescopic arm 4 and the moving parts of the wire guide wheel device, effectively reducing the direct contact and friction between them, improving the operating performance, and improving the stability of the subsequent self-positioning device.

[0030] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A self-positioning device, comprising a fixing seat (1), characterized in that: The outer wall of the fixing seat (1) is fixedly connected to a mounting head (2), a through hole (201) is provided on the surface of the mounting head (2), an anti-slip groove (202) is provided on the inner wall of the mounting head (2), a mounting cavity (3) is provided inside the mounting head (2), a telescopic arm (4) is slidably connected in the mounting cavity (3), the telescopic arm (4) is clamped on the outer wall of the wheel shaft (5) through a limiting ring (8), the wheel shaft (5) is fixedly connected to an adjusting screw (6), the adjusting screw (6) is threadedly connected to a fixing nut (7), a pressing block (701) is slidably connected in the mounting cavity (3), an anti-wear device (9) is provided in the mounting cavity (3), the anti-wear device (9) is movably connected to a lubrication assembly (10), and the anti-wear device (9) comprises: An active cavity (91), wherein the inner wall of the mounting head (2) is provided with an active cavity (91); A fixed block (92) is fixedly connected to the movable cavity (91).

2. A self-positioning device according to claim 1, characterized in that: The outer wall of the wheel shaft (5) is slidably connected to a guide wheel (601), and a guide wheel fixing member (602) is provided on the wheel shaft (5).

3. A self-positioning device according to claim 1, characterized in that: A spring 1 (94) is fixedly connected to the movable chamber (91), and the movable chamber (91) is elastically connected to the extrusion block (93) via the spring 1 (94).

4. A self-positioning device according to claim 1, characterized in that: A lifting column (95) is slidably connected to the fixed block (92), and the lifting column (95) is elastically connected to the movable cavity (91) via a fixedly connected spring 2 (96). The lifting column (95) is slidably connected in the through hole (201).

5. A self-positioning device according to claim 2, characterized in that: The lubrication assembly (10) comprises a fixed disc (101), the fixed disc (101) is fixedly connected in the movable cavity (91), and a rotating rod (102) is rotatably connected in the fixed disc (101).

6. A self-positioning device according to claim 5, characterized in that: The rotating rod (102) is arranged behind the extrusion block (93), the rotating rod (102) is hinged to a hinge rod (103), and one end of the hinge rod (103) away from the rotating rod (102) is hinged to a lubrication cylinder (104).

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