Push rod device for telescopic anti-disengagement adjustment mounting

Abstract

The present application relates to the technical field of push rod, and discloses a push rod device applied to telescopic anti-disengagement adjustment installation, which comprises a push-pull rod and a telescopic pipe body for driving the push-pull rod to telescope, a telescopic hinge structure for telescopic adjustment is connected to the outer end of the push-pull rod, the telescopic hinge structure comprises a connecting head and a hinge connecting seat, an adjusting nut is arranged between the hinge connecting seat and the connecting head, and a counter-pulling anti-disengagement structure is arranged between the connecting head and the hinge connecting seat, the counter-pulling anti-disengagement structure comprises an arc-shaped pull tab connected with the connecting head and a connecting shaft connected with the hinge connecting seat, an inner hook is arranged on the arc-shaped pull tab, and a flange for counter-pulling anti-disengagement with the inner hook is arranged on the connecting shaft; the length of the telescopic hinge structure is adjusted to improve the accurate installation distance of the push rod device, so that the length of the push rod device is accurately controlled, the problem of poor installation precision of the push rod device is solved, and the counter-pulling anti-disengagement structure is used to prevent the telescopic hinge structure from disengaging during the working process, thereby increasing the safety of the push rod device in use.

Description

Technical Field

[0001] This invention relates to the technical field of push rods, and more specifically, to a push rod device used in telescopic anti-detachment adjustment installations. Background Technology

[0002] Existing push rod devices typically use cylinders, hydraulic cylinders, or mechanical push rods as a power source to drive the object to be pushed to move back and forth.

[0003] In equipment using push rod devices, adjusting the installation distance of the push rod device is often necessary to reduce the accuracy requirements of the equipment and the push rod device. Common adjustment methods require first measuring the required installation distance and then adjusting the length of the push rod device to that distance, which is not only cumbersome but also introduces measurement errors. Alternatively, one end of the installed push rod device can be removed and the length adjusted by rotating the threaded joint, which requires repeated disassembly and reduces efficiency. Neither of these two adjustment methods can achieve stepless adjustment. Summary of the Invention

[0004] The purpose of this invention is to provide a push rod device for telescopic anti-detachment adjustment installation, aiming to solve the problem of poor installation accuracy of push rod devices in the prior art.

[0005] This invention is implemented as follows: a push rod device for telescopic anti-detachment adjustment and installation includes a push-pull rod and a telescopic tube body for driving the push-pull rod to extend and retract. The inner end of the push-pull rod is installed in the telescopic tube body, and the outer end of the push-pull rod is connected to a telescopic hinge structure for telescopic adjustment. The telescopic hinge structure includes a connector head detachably connected to the push-pull rod and a hinge seat hinged to the device. An adjusting nut is provided between the hinge seat and the connector head to adjust the distance between them. The two ends of the adjusting nut are respectively sleeved on the hinge seat and the connector head. A counter-pull anti-detachment structure for telescopic anti-detachment of the telescopic hinge structure is provided between the connector head and the hinge seat. The counter-pull anti-detachment structure includes an arc-shaped pull piece connected to the connector head and a connecting shaft connected to the hinge seat. The arc-shaped pull piece is provided with an inner hook, and the connecting shaft is provided with a flange that counter-pulls against the inner hook to prevent detachment.

[0006] When the arc-shaped pull tab and the connecting shaft are respectively in the adjusting nut, the flange and the inner hook are in movable engagement.

[0007] Furthermore, the connector head is provided with a first threaded head, and the hinge connector is provided with a second threaded head, the second threaded head and the first threaded head being threadedly connected by an adjusting nut.

[0008] Furthermore, the adjusting nut has a threaded cavity that extends vertically through the interior and exterior. The threaded cavity is provided with a first threaded groove and a second threaded groove. The threads of the first threaded groove and the second threaded groove have opposite directions. The first threaded groove is threadedly connected to a first threaded head, and the second threaded groove is threadedly connected to a second threaded head.

[0009] Furthermore, the first threaded head is provided with a hollow cavity for inserting a connecting shaft. The inner ends of the plurality of arc-shaped pull tabs are arranged circumferentially around the inner sidewall of the hollow cavity at intervals. The outer ends of the plurality of arc-shaped pull tabs are exposed outside the hollow cavity and form a hollow cavity for inserting the connecting shaft. The hollow cavity is connected to the hollow cavity, and the inner hook is located in the hollow cavity. The plurality of flanges are arranged circumferentially around the outer end of the connecting shaft at intervals.

[0010] When the hinge connector and the connector are at a set interval, the flange of the connecting shaft is in the hollow cavity, and the flange of the connecting shaft and the inner hook of the arc-shaped pull tab are arranged opposite to each other to form the anti-detachment structure.

[0011] Furthermore, the second threaded head has an internal cavity for inserting an arc-shaped pull tab, the inner end of the connecting shaft and the hinge connecting seat are an integral structure, and the outer end of the connecting shaft passes through the internal cavity and is exposed outside the internal cavity;

[0012] When the hinge connector and the connector are at a set interval, the flange of the connecting shaft is in the hollow cavity, and the arc-shaped pull tab is in the inner cavity.

[0013] Furthermore, the connector head is provided with a first flat opening that can be rotated by a wrench, and the hinge connector seat is provided with a hinge hole that penetrates the hinge connector seat;

[0014] When the first flat opening is perpendicular to the hinge hole, the inner hook of the arc-shaped pull tab and the flange of the connecting shaft are in a detachable state.

[0015] When the first flat opening is parallel to the hinge hole, the inner hook of the arc-shaped pull tab and the flange of the connecting shaft are in a state of anti-detachment.

[0016] Furthermore, the adjusting nut is provided with a second flat opening that can be rotated by a wrench.

[0017] Furthermore, a limiting region is formed between the first thread groove and the second thread groove at intervals, and the limiting region is located in the middle of the thread cavity.

[0018] Furthermore, an inner sleeve is provided between the connector and the adjusting nut, the outer end of the inner sleeve is connected to the adjusting nut by a bearing, and the inner end of the inner sleeve is slidably connected to the connector.

[0019] An outer sleeve is provided between the hinge connecting seat and the adjusting nut. The inner end of the outer sleeve is connected to the adjusting nut by a bearing, and the outer end of the inner sleeve is slidably connected to the hinge connecting seat.

[0020] When the distance between the adjusting nut drive connector and the hinge connector reaches the set maximum range, the first threaded head is exposed inside the inner sleeve, and the second threaded head is exposed inside the outer sleeve.

[0021] Furthermore, the inner sleeve is provided with a first telescopic bar that displays the connection length between the connector and the adjusting nut, and the inner sleeve is provided with a first sliding groove for the first telescopic bar to extend and retract, and the first telescopic bar slides in cooperation with the inner sleeve through the first sliding groove;

[0022] The outer tube is provided with a second telescopic bar that displays the connection length between the hinge connector and the adjusting nut. The outer tube is provided with a second sliding groove for the telescopic bar to extend and retract. The second telescopic bar slides in conjunction with the outer tube through the second sliding groove.

[0023] The first and second telescopic strips are respectively provided with scales for measuring distance, and the scales are exposed on the inner sleeve and outer sleeve.

[0024] Compared with existing technologies ， The push rod device provided by this invention, which is used for telescopic anti-detachment adjustment and installation, improves the precise installation distance of the push rod device by adjusting the length of the telescopic hinge structure, thereby achieving precise control of the length of the push rod device. This solves the problem of poor installation accuracy of the push rod device. The anti-detachment structure is used to prevent the telescopic hinge structure from detaching during operation, thus increasing the safety of the push rod device during use. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the push rod device for telescopic anti-detachment adjustment installation provided by the present invention;

[0026] Figure 2 This is a schematic diagram of the connector, adjusting nut, and hinged connector provided by the present invention;

[0027] Figure 3 This is a three-dimensional schematic diagram of the installation of the connector and hinge connector provided by the present invention. Figure 1 ;

[0028] Figure 4 This is a three-dimensional schematic diagram of the installation of the connector and hinge connector provided by the present invention. Figure 2 ;

[0029] Figure 5 This is a schematic diagram of the installation structure of the connector, adjusting nut, and hinged connector provided by the present invention. Figure 1 ;

[0030] Figure 6 This is a schematic diagram of the installation structure of the connector, adjusting nut, and hinged connector provided by the present invention. Figure 2 ;

[0031] Figure 7 This is a schematic diagram of the installation structure of the connector, adjusting nut, and hinged connector provided by the present invention. Figure 3 ;

[0032] Figure 8 This is a schematic diagram of the installation structure of the connector, adjusting nut, and hinged connector provided by the present invention. Figure 4 ;

[0033] Figure 9 This is a schematic diagram of the inner sleeve and outer sleeve provided by the present invention.

[0034] In the diagram: telescopic tube 100, push-pull rod 200, connector 300, adjusting nut 400, hinge connector 500, anti-detachment structure 600, telescopic hinge structure 700, first threaded head 301, arc-shaped pull tab 302, inner hook 303, hollow cavity 304, first flat opening 305, inner sleeve 306, first telescopic strip 307, first sliding groove 308, threaded cavity 401, first threaded groove 402, second threaded groove 403, second flat opening 404, limiting area 405, second threaded head 501, connecting shaft 502, flange 503, hinge hole 504, internal cavity 505, outer sleeve 506, second telescopic strip 507, second sliding groove 508. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0036] The implementation of the present invention will be described in detail below with reference to specific embodiments.

[0037] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this invention, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this invention 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, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this invention. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0038] Reference Figure 1-9 The image shows a preferred embodiment of the present invention.

[0039] A push rod device used for telescopic anti-detachment adjustment installation includes a push-pull rod 200 and a telescopic tube 100 for driving the push-pull rod 200 to extend and retract. The inner end of the push-pull rod 200 is installed in the telescopic tube 100, and the outer end of the push-pull rod 200 is connected to a telescopic hinge structure 700 for telescopic adjustment. The telescopic hinge structure 700 includes a connector 300 detachably connected to the push-pull rod 200 and a hinge seat 500 hinged to the device. An adjustment mechanism is provided between the hinge seat 500 and the connector 300 to adjust the connection between them. An adjusting nut 400 with an inter-space distance is provided. The two ends of the adjusting nut 400 are respectively sleeved on the hinge connecting seat 500 and the connector 300. A telescopic hinge structure 700 and a telescopic anti-detachment anti-pull-out structure 600 are provided between the connector 300 and the hinge connecting seat 500. The anti-detachment anti-pull-out structure 600 includes an arc-shaped pull piece 302 connected to the connector 300 and a connecting shaft 502 connected to the hinge connecting seat 500. An inner hook 303 is provided on the arc-shaped pull piece 302, and a flange 503 is provided on the connecting shaft 502 to resist the inner hook 303 and prevent detachment.

[0040] When the arc-shaped pull plate 302 and the connecting shaft 502 are respectively in the adjusting nut 400, the flange 503 and the inner hook 303 are in movable engagement.

[0041] The push rod device provided above, used for telescopic anti-detachment adjustment and installation, improves the precise installation distance of the push rod device by adjusting the length of the telescopic hinge structure 700, thereby achieving precise control of the length of the push rod device and solving the problem of poor installation accuracy of the push rod device. The anti-detachment structure 600 is used to prevent the telescopic hinge structure 700 from detaching during operation, increasing the safety of the push rod device during use.

[0042] The distance between the hinge connector 500 and the connector 300 is controlled by rotating the adjusting nut 400, thereby controlling the distance between the push rod 200 and the hinge connector 500. This achieves precise control of the length of the push rod device, improves the precision control of the installation distance of the push rod device, and solves the problem of poor installation accuracy of the push rod device.

[0043] The cross-pull formed by the inner hook 303 of the arc-shaped pull plate 302 and the flange 503 of the connecting shaft 502 can prevent the connector 300 from separating from the hinge connecting seat 500 during the operation of the push rod device, thus increasing the safety of the push rod device during use.

[0044] The connector 300 is provided with a first threaded head 301, and the hinge connector 500 is provided with a second threaded head 501. The second threaded head 501 and the first threaded head 301 are threadedly connected by an adjusting nut 400. In this way, the adjusting nut 400 can easily drive the distance between the second threaded head 501 and the first threaded head 301 through the thread, thereby achieving precise control of the length of the push rod device.

[0045] In this embodiment, the adjusting nut 400 has a threaded cavity 401 that runs vertically through the nut. The threaded cavity 401 is provided with a first threaded groove 402 and a second threaded groove 403. The threads of the first threaded groove 402 and the second threaded groove 403 have opposite directions. The first threaded groove 402 is threadedly connected to the first threaded head 301, and the second threaded groove 403 is threadedly connected to the second threaded head 501.

[0046] When the adjusting nut 400 rotates in one direction, the distance between the first threaded head 301 of the connector 300 and the second threaded head 501 of the hinged connecting seat 500 shortens or lengthens, thereby achieving the shortening or lengthening of the distance between the connector 300 and the hinged connecting seat 500, which can realize the adjustment of the installation length of the push rod device.

[0047] The first threaded head 301 has a hollow cavity for inserting the connecting shaft 502. The inner ends of multiple arc-shaped pull tabs 302 are arranged circumferentially around the inner sidewall of the hollow cavity, and the outer ends of the multiple arc-shaped pull tabs 302 are exposed outside the hollow cavity, forming a hollow cavity 304 for inserting the connecting shaft 502. The hollow cavity 304 is connected to the hollow cavity, and the inner hook 303 is located in the hollow cavity 304. Multiple flanges 503 are arranged circumferentially around the outer end of the connecting shaft 502. In this way, the connecting shaft 502 can extend into the interior of the first threaded head 301 through the hollow cavity 304, thereby increasing the space utilization between the hinge connecting seat 500 and the connecting head 300 and reducing the distance between the two.

[0048] When the hinge connector 500 and the connector 300 are at a set interval distance, the flange 503 of the connecting shaft 502 is in the hollow cavity 304, and the flange 503 of the connecting shaft 502 and the inner hook 303 of the arc-shaped pull tab 302 are arranged opposite to each other to form a pull-out anti-detachment structure 600.

[0049] In this embodiment, the second threaded head 501 is provided with an internal cavity 505 for the arc-shaped pull tab 302 to be inserted. The inner end of the connecting shaft 502 and the hinge connecting seat 500 are an integral structure. The outer end of the connecting shaft 502 passes through the internal cavity 505 and is exposed outside the internal cavity 505.

[0050] When the hinge connector 500 and the connector 300 are at a set interval distance, the flange 503 of the connecting shaft 502 is in the hollow cavity 304, and the arc-shaped pull tab 302 is in the inner cavity 505.

[0051] In this way, the arc-shaped pull tab 302 can extend into the interior of the second threaded head 501 through the internal cavity 505, thereby increasing the space utilization between the hinged connector 500 and the connector head 300 and reducing the distance between them.

[0052] In this embodiment, the connector 300 is provided with a first flat opening 305 that can be rotated by a wrench, and the hinge connector 500 is provided with a hinge hole 504 that penetrates the hinge connector 500.

[0053] When the first flat opening 305 is perpendicular to the hinge hole 504, the inner hook 303 of the arc-shaped pull tab 302 and the flange 503 of the connecting shaft 502 are in a detachable state.

[0054] When the first flat opening 305 is parallel to the hinge hole 504, the inner hook 303 of the arc-shaped pull tab 302 and the flange 503 of the connecting shaft 502 are in a state of anti-detachment.

[0055] When the first flat opening 305 is perpendicular to the hinge hole 504, align the connector 300 and the hinge connector 500 with the adjusting nut, and screw them into the adjusting nut 400 by rotating it, as shown in the attached figure. Figure 5 As shown in the attached diagram; after screwing in to the required length, as shown in the attached diagram. Figure 6 As shown in the attached figure; after rotating the hinge connector 500 by 90°, it is as shown in the attached figure. Figure 7 As shown in the figure; after completing the above three steps, the installation steps of adjusting nut 400, connector 300 and hinge connector 500 are completed. After the installation steps are completed, the push rod device can be installed in the equipment. The installation distance of the push rod device can be adjusted by rotating adjusting nut 400 in both directions.

[0056] When the adjusting connector 300 and the hinged connector 500 are at their shortest distance, as shown in the attached figure. Figure 8 As shown;

[0057] When the adjusting connector 300 and the hinged connector 500 are at their longest distance, as shown in the attached figure. Figure 7 As shown, the inner hook 303 and the flange 503 are in an interlaced position, so that the distance between the connector 300 and the hinge connector 500 cannot be extended further. Since the hinge hole 504 of the hinge connector 500 is already hinged to the equipment and cannot rotate, the connector 300 and the hinge connector 500 cannot be completely separated. And when it is in its longest extended state, sufficient connection strength can be reserved by design.

[0058] The adjusting nut 400 is provided with a second flat opening 404 for rotating the adjusting nut 400 by means of a wrench; this increases the convenience of rotating the adjusting nut 400.

[0059] A limiting area 405 is formed between the first threaded groove 402 and the second threaded groove 403 at intervals, and the limiting area 405 is located in the middle of the threaded cavity 401; in this way, when the adjusting nut 400 rotates excessively, there will be no mutual conflict between the first threaded head 301 and the second threaded head 501.

[0060] The push-pull rod 200 is threadedly connected to the connector 300, and a sealing ring is provided between the push-pull rod 200 and the connector 300; in this way, the sealing ring can be used to seal and waterproof.

[0061] In this embodiment, an inner sleeve 306 is provided between the connector 300 and the adjusting nut 400. The outer end of the inner sleeve 306 is connected to the adjusting nut 400 by a bearing, and the inner end of the inner sleeve 306 is slidably connected to the connector 300.

[0062] An outer sleeve 506 is provided between the hinge connecting seat 500 and the adjusting nut 400. The inner end of the outer sleeve 506 is connected to the adjusting nut 400 by a bearing sleeve, and the outer end of the inner sleeve 306 is slidably connected to the hinge connecting seat 500.

[0063] When the distance between the adjusting nut 400 driving connector 300 and the hinge connector 500 reaches the set maximum range, the first threaded head 301 is exposed inside the inner sleeve 306, and the second threaded head 501 is exposed inside the outer sleeve 506.

[0064] The inner sleeve 306 can prevent the first threaded head 301 from being damaged by impact, prevent particles or dust from adhering to the first threaded head 301, and also protect the first threaded head 301 from rainwater corrosion.

[0065] The outer sleeve 506 can prevent the second threaded head 501 from being damaged by impact, prevent particles or dust from adhering to the second threaded head 501, and also protect the second threaded head 501 from rainwater corrosion.

[0066] In this embodiment, the inner sleeve 306 is provided with a first telescopic bar 307 that displays the connection length between the connector 300 and the adjusting nut 400, and the inner sleeve 306 is provided with a first sliding groove 308 for the first telescopic bar 307 to telescopically move. The first telescopic bar 307 slides with the inner sleeve 306 through the first sliding groove 308.

[0067] The outer tube 506 is provided with a second telescopic bar 507 that displays the connection length between the hinge connecting seat 500 and the adjusting nut 400. The outer tube 506 is provided with a second sliding groove 508 for the second telescopic bar 507 to telescopically move. The second telescopic bar 507 slides with the outer tube 506 through the second sliding groove 508.

[0068] The first telescopic strip 307 and the second telescopic strip 507 are respectively provided with a distance measurement scale, which is exposed on the inner sleeve 306 and the outer sleeve 506.

[0069] By observing the sliding position of the first telescopic bar 307 and the scale on the first sliding groove 308 of the inner sleeve 306, the connection length between the connector 300 and the adjusting nut 400 can be determined, and thus the remaining extension or reduction distance between the connector 300 and the adjusting nut 400 can be determined.

[0070] By observing the sliding position of the second telescopic strip 507 and the scale on the second slide groove 508 of the outer sleeve 506, the connection length between the hinge connecting seat 500 and the adjusting nut 400 can be determined, and thus the remaining extension or reduction distance between the hinge connecting seat 500 and the adjusting nut 400 can be determined.

[0071] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A push rod device used for telescopic anti-detachment adjustment installation, characterized in that, The device includes a push-pull rod and a telescopic tube for driving the push-pull rod to extend and retract. The inner end of the push-pull rod is installed in the telescopic tube, and the outer end of the push-pull rod is connected to a telescopic hinge structure for telescopic adjustment. The telescopic hinge structure includes a connector detachably connected to the push-pull rod and a hinge seat hinged to the device. An adjusting nut is provided between the hinge seat and the connector to adjust the distance between them. The two ends of the adjusting nut are respectively sleeved on the hinge seat and the connector. A counter-pull anti-detachment structure for the telescopic hinge structure is provided between the connector and the hinge seat. The counter-pull anti-detachment structure includes an arc-shaped pull piece connected to the connector and a connecting shaft connected to the hinge seat. The arc-shaped pull piece has an inner hook, and the connecting shaft has a flange that counter-pulls against the inner hook to prevent detachment. When the arc-shaped pull tab and the connecting shaft are respectively in the adjusting nut, the flange and the inner hook are in movable engagement; The connector head is provided with a first threaded head, and the hinged connector is provided with a second threaded head. The second threaded head and the first threaded head are threadedly connected by an adjusting nut. An inner sleeve is provided between the connector and the adjusting nut. The outer end of the inner sleeve is connected to the adjusting nut by a bearing. The inner end of the inner sleeve is slidably connected to the connector. An outer sleeve is provided between the hinge connecting seat and the adjusting nut. The inner end of the outer sleeve is connected to the adjusting nut by a bearing, and the outer end of the inner sleeve is slidably connected to the hinge connecting seat. When the distance between the adjusting nut drive connector and the hinge connector reaches the set maximum range, the first threaded head is exposed inside the inner sleeve, and the second threaded head is exposed inside the outer sleeve. The first threaded head has a hollow cavity for inserting a connecting shaft. The inner ends of the plurality of arc-shaped pull tabs are arranged circumferentially around the inner sidewall of the hollow cavity at intervals. The outer ends of the plurality of arc-shaped pull tabs are exposed outside the hollow cavity and form a hollow cavity for inserting the connecting shaft. The hollow cavity is connected to the hollow cavity. The inner hook is located in the hollow cavity. The plurality of flanges are arranged circumferentially around the outer end of the connecting shaft at intervals. When the hinge connector and the connector are at a set interval, the flange of the connecting shaft is in the hollow cavity, and the flange of the connecting shaft and the inner hook of the arc-shaped pull tab are arranged opposite to each other to form the anti-detachment structure. The second threaded head has an internal cavity for inserting an arc-shaped pull tab. The inner end of the connecting shaft and the hinged connecting seat are an integral structure. The outer end of the connecting shaft passes through the internal cavity and is exposed outside the internal cavity. When the hinge connector and the connector are at a set interval, the flange of the connecting shaft is in the hollow cavity, and the arc-shaped pull tab is in the inner cavity; The connector head is provided with a first flat opening that can be rotated by a wrench, and the hinge connector seat is provided with a hinge hole that penetrates the hinge connector seat; When the first flat opening is perpendicular to the hinge hole, the inner hook of the arc-shaped pull tab and the flange of the connecting shaft are in a detachable state. When the first flat opening is parallel to the hinge hole, the inner hook of the arc-shaped pull tab and the flange of the connecting shaft are in a state of anti-detachment.

2. The push rod device for telescopic anti-detachment adjustment installation as described in claim 1, characterized in that, The adjusting nut has a threaded cavity that runs vertically through it. The threaded cavity has a first threaded groove and a second threaded groove. The threads of the first threaded groove and the second threaded groove have opposite directions. The first threaded groove is threaded to a first threaded head, and the second threaded groove is threaded to a second threaded head.

3. The push rod device for telescopic anti-detachment adjustment installation as described in claim 1, characterized in that, The adjusting nut is provided with a second flat opening that can be rotated by a wrench.

4. The push rod device for telescopic anti-detachment adjustment installation as described in claim 2, characterized in that, A limiting area is formed by the first thread groove and the second thread groove being arranged at intervals, and the limiting area is located in the middle of the thread cavity.

5. The push rod device for telescopic anti-detachment adjustment installation as described in claim 1, characterized in that, The inner sleeve is provided with a first telescopic bar that displays the connection length between the connector and the adjusting nut. The inner sleeve is provided with a first sliding groove for the first telescopic bar to extend and retract. The first telescopic bar slides in conjunction with the inner sleeve through the first sliding groove. The outer tube is provided with a second telescopic bar that displays the connection length between the hinge connector and the adjusting nut. The outer tube is provided with a second sliding groove for the telescopic bar to extend and retract. The second telescopic bar slides in conjunction with the outer tube through the second sliding groove. The first and second telescopic strips are respectively provided with scales for measuring distance, and the scales are exposed on the inner sleeve and outer sleeve.

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