Contact type displacement sensor

Abstract

The utility model relates to a contact type displacement sensor which comprises a stay wire displacement sensor body, a wire outlet cylinder is arranged on the right side face of the stay wire displacement sensor body, a protective sleeve is fixedly installed on the right side face of the wire outlet cylinder, and a protective mechanism is movably installed in the protective sleeve. According to the contact type displacement sensor, the protection mechanism is arranged, the positioning disc drives the limiting groove to rotate, the inner wall of the limiting groove pushes the sliding column to move to different positions, the sliding column further drives the position of the connecting rod and the position of the baffle to change, and the first movable bolt column and the second movable bolt column limit part of the position of the baffle; the baffles cannot fall off and move out of the fixed circular ring, the size of the middle through hole is adjusted by adjusting the occupied area of the baffles in the fixed circular ring, the through hole is shrunk when the occupied area of the baffles in the through hole is large, and the line body is limited and fixed through the multiple baffles. Damage of the stay wire displacement sensor body caused by rapid contraction and collision of the wire body due to the unfixed wire pulling end is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of contact type displacement sensors, in particular to a contact type displacement sensor. Background Art

[0002] The contact displacement sensor requires the sensor probe to contact the object to be measured, and measures the displacement through the movement of the probe; common contact displacement sensors include wire type, spring type, capacitive type, inductive type, etc.

[0003] According to a pull-wire displacement sensor with a pull-wire protection device mentioned in Chinese patent application No. 201920877663.X, the pull-wire displacement sensor with a pull-wire protection device can solve the problem of the existing pull-wire displacement sensor that the pull wire is easily broken when the pull wire is suddenly released. However, the pull-wire displacement sensor with a pull-wire protection device does not have a positioning structure when used. When the user fixes one end of the wire when pulling the wire, the wire and the pull head are prone to rapid rebound, affecting the service life of the sensor. Therefore, it is necessary to propose a contact displacement sensor to solve the above-mentioned problem. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a contact displacement sensor capable of positioning and fixing a thread head.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a contact displacement sensor, comprising a wire displacement sensor body, a wire outlet barrel is arranged on the right side of the wire displacement sensor body, a protective sleeve is fixedly installed on the right side of the wire outlet barrel, a positioning plate is movably installed on the outside of the protective sleeve, an annular plate is fixedly installed on the inner wall of the positioning plate, a fixed ring is fixedly installed inside the protective sleeve, and a protective mechanism is movably installed inside the protective sleeve;

[0006] The protective mechanism includes a limit groove, a limit groove is provided on the top of the annular plate, a sliding column is movably installed inside the limit groove, one end of the sliding column is connected to a connecting rod, a first movable bolt column is installed at one end of the connecting rod, a baffle is installed outside the first movable bolt column, and a second movable bolt column is installed on the top of the baffle.

[0007] Furthermore, a baffle is connected between the first movable bolt and the second movable bolt, the second movable bolt is installed on the top of the fixed ring, and the baffle passes through the fixed ring and extends to the inside of the fixed ring.

[0008] Furthermore, a through hole is provided on the right side surface of the protective sleeve, a wire body passes through the interior of the through hole, and a wire pulling end is fixedly connected to the end of the wire body.

[0009] Furthermore, the number of the baffles is set to five groups, the outsides of the five groups of baffles are provided with anti-slip rubber pads, and the middles of the five groups of baffles are provided with wire bodies.

[0010] Furthermore, a hollow cavity is provided between the annular plate and the fixed circular ring, and a baffle is movably installed inside the hollow cavity.

[0011] Furthermore, an annular slideway is provided on one side of the positioning plate, and a ball bearing is movably installed inside the annular slideway.

[0012] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0013] The contact displacement sensor is provided with a protective mechanism. By manually rotating the positioning plate, the positioning plate will drive the position of the limit groove to change, and the inner wall of the limit groove will push the sliding column to move to a different position. The sliding column then drives the position of the connecting rod and the baffle to change. Since the first movable bolt column and the second movable bolt column limit the partial position of the baffle, the baffle cannot fall off and move out of the fixed ring. The size of the middle through hole can be adjusted by adjusting the area occupied by the baffle inside the fixed ring. When the area occupied by the baffle is large, the through hole is reduced. The wire body is limited and fixed by multiple baffles to avoid damage to the wire displacement sensor body caused by rapid contraction and collision of the wire body due to the unfixed wire end. The wire body and the wire displacement sensor body can be protected, which solves the problem that the existing wire sensor does not have a positioning structure. When the user fixes one end of the wire when pulling the wire, the wire and the pull head are prone to rapid rebound, affecting the service life of the sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a front view of the sensor structure of the utility model;

[0015] Figure 2 This is a three-dimensional diagram of the protective cover structure of the utility model;

[0016] Figure 3 It is a right side sectional view of the protective cover of the utility model.

[0017] In the figure: 1. wire displacement sensor body; 2. wire outlet barrel; 3. protective sleeve; 4. wire body; 5. wire pulling end; 6. positioning plate; 7. through hole; 8. annular slideway; 9. ball bearing; 10. fixed ring; 11. annular plate; 12. hollow cavity; 13. protective mechanism; 131. limit groove; 132. slide column; 133. connecting rod; 134. first movable bolt column; 135. second movable bolt column; 136. baffle. DETAILED DESCRIPTION

[0018] 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.

[0019] See also Figure 1-3 A contact displacement sensor in this embodiment includes a wire displacement sensor body 1, a wire outlet barrel 2 is provided on the right side of the wire outlet barrel 2, a protective sleeve 3 is fixedly installed on the right side of the wire outlet barrel 2, a positioning disk 6 is movably installed outside the protective sleeve 3, an annular plate 11 is fixedly installed on the inner wall of the positioning disk 6, a fixed ring 10 is fixedly installed inside the protective sleeve 3, and a protective mechanism 13 is movably installed inside the protective sleeve 3;

[0020] The protection mechanism 13 includes a limit groove 131. The limit groove 131 is opened on the top of the annular plate 11. A sliding column 132 is movably installed inside the limit groove 131. One end of the sliding column 132 is connected to a connecting rod 133. A first movable bolt column 134 is installed at one end of the connecting rod 133. A baffle plate 136 is installed on the outside of the first movable bolt column 134. A second movable bolt column 135 is installed on the top of the baffle plate 136.

[0021] During specific implementation, by setting up the protection mechanism 13 and manually rotating the positioning plate 6, the positioning plate 6 will drive the position of the limit groove 131 to change, and the inner wall of the limit groove 131 will push the sliding column 132 to move to a different position, and the sliding column 132 will then drive the position of the connecting rod 133 and the baffle 136 to change. Since the first movable bolt 134 and the second movable bolt 135 limit the partial position of the baffle 136, the baffle 136 cannot fall off and move out of the fixed ring 10, and the size of the middle through hole 7 can be adjusted by adjusting the area occupied by the baffle 136 inside the fixed ring 10. When the area occupied by the baffle 136 is large, the through hole 7 is reduced. The wire body 4 is limited and fixed by multiple baffles 136 to avoid damage to the wire displacement sensor body 1 caused by the wire pulling end 5 not being fixed properly, thereby preventing the wire body 4 from shrinking and colliding rapidly. The wire displacement sensor body 1 can be protected.

[0022] When implementing, follow these steps:

[0023] 1) First pull the wire body 4 and the wire pulling end 5 outward to a suitable length and position;

[0024] 2) Then the positioning plate 6 is rotated, the positioning plate 6 will drive the position of the limiting groove 131 to change, the inner wall of the limiting groove 131 will push the sliding column 132 to move to a different position, and the sliding column 132 will then drive the position of the connecting rod 133 and the baffle 136 to change, because the first movable bolt 134 and the second movable bolt 135 limit the position of part of the baffle 136;

[0025] 3) The baffle plate 136 cannot fall off and move out of the fixed ring 10, and the size of the middle through hole 7 is adjusted by adjusting the area occupied by the baffle plate 136 inside the fixed ring 10. When the baffle plate 136 occupies a larger area of ​​the through hole 7, the through hole 7 is reduced;

[0026] 4) Finally, the wire body 4 is limited and fixed by multiple baffles 136 to prevent the wire body 4 from shrinking and colliding quickly due to the wire end 5 not being fixed properly, causing damage to the wire displacement sensor body 1, thereby protecting the wire body 4 and the wire displacement sensor body 1.

[0027] In summary, the contact displacement sensor is provided with the protection mechanism 13. By manually rotating the positioning plate 6, the positioning plate 6 will drive the position of the limiting groove 131 to change. The inner wall of the limiting groove 131 will push the sliding column 132 to move to a different position. The sliding column 132 then drives the position of the connecting rod 133 and the baffle 136 to change. Since the first movable bolt 134 and the second movable bolt 135 limit the position of part of the baffle 136, the baffle 136 cannot fall off and move out of the fixed ring 10. The baffle 136 is adjusted to the fixed ring 10. 0 The size of the middle through hole 7 can be adjusted according to the occupied area inside. When the through hole 7 occupies a large area, the baffle 136 shrinks the through hole 7. The wire body 4 is limited and fixed by multiple baffles 136 to avoid damage to the wire displacement sensor body 1 caused by the wire end 5 not being fixed properly, which causes the wire body 4 to shrink and collide quickly. The wire body 4 and the wire displacement sensor body 1 can be protected, which solves the problem that the existing wire sensor does not have a positioning structure. When the user fixes one end of the wire when pulling the wire, the wire and the pull head are prone to rebound quickly, affecting the service life of the sensor.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A contact displacement sensor, comprising a wire displacement sensor body (1), characterized in that: A wire outlet barrel (2) is arranged on the right side of the wire displacement sensor body (1); a protective sleeve (3) is fixedly mounted on the right side of the wire outlet barrel (2); a positioning plate (6) is movably mounted on the outside of the protective sleeve (3); an annular plate (11) is fixedly mounted on the inner wall of the positioning plate (6); a fixed ring (10) is fixedly mounted inside the protective sleeve (3); and a protective mechanism (13) is movably mounted inside the protective sleeve (3); The protection mechanism (13) comprises a limiting groove (131), the limiting groove (131) is provided at the top of the annular plate (11), a sliding column (132) is movably installed inside the limiting groove (131), one end of the sliding column (132) is connected to a connecting rod (133), a first movable bolt column (134) is installed at one end of the connecting rod (133), a baffle (136) is installed outside the first movable bolt column (134), and a second movable bolt column (135) is installed on the top of the baffle (136).

2. A contact displacement sensor according to claim 1, characterized in that: A baffle (136) is connected between the first movable bolt (134) and the second movable bolt (135), the second movable bolt (135) is installed on the top of the fixed ring (10), and the baffle (136) penetrates the fixed ring (10) and extends to the inside of the fixed ring (10).

3. A contact displacement sensor according to claim 1, characterized in that: A through hole (7) is provided on the right side of the protective sleeve (3), a wire body (4) passes through the through hole (7), and a wire pulling end (5) is fixedly connected to the end of the wire body (4).

4. A contact displacement sensor according to claim 1, characterized in that: The number of the baffles (136) is set to five groups, and the outsides of the five groups of baffles (136) are provided with anti-slip rubber pads, and the middles of the five groups of baffles (136) are provided with wire bodies (4).

5. The contact displacement sensor according to claim 1, characterized in that: A hollow cavity (12) is provided between the annular plate (11) and the fixed circular ring (10), and a baffle (136) is movably installed inside the hollow cavity (12).

6. A contact displacement sensor according to claim 1, characterized in that: An annular slideway (8) is provided on one side of the positioning plate (6), and a ball bearing (9) is movably installed inside the annular slideway (8).

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