Limiting stopper high in reuse rate and convenient to overhaul

Abstract

The utility model discloses a stopper with high reuse rate and convenient maintenance, which comprises a first coaming and a second coaming, the first coaming and the second coaming are connected through a mounting plate, the mounting plate is provided with a travel switch, one end of the mounting plate is provided with a movable groove, the bottom of the mounting plate is provided with two mounting brackets, and the two mounting brackets are connected with the travel switch. One end of the sleeve penetrates through the two mounting supports and is movably connected with the two mounting supports, the sleeve is provided with a blocking piece, the blocking piece is located on the inner sides of the mounting supports, the arc surface of the sleeve is sleeved with a spring, the two ends of the spring abut against the mounting supports and the blocking piece respectively, and the arc surface of the sleeve is provided with a trigger plate; the trigger plate can move in the direction close to or away from the travel switch along the movable groove, when a user observes that the normal use of the limiting stopper is affected by clamping stagnation, rusting and the like of the spring, the user can overhaul the spring through the open end of the mounting frame, normal use of the spring is guaranteed, and then normal use of the limiting stopper is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of limiters, and particularly relates to a limiter with high reuse rate and convenient maintenance. Background Art

[0002] A limiter is a safety device mainly used to protect equipment or equipment operators, and is commonly found in self-propelled aerial work equipment. Its main function is to limit the position of the equipment by cutting off the power supply of the electrical appliance, ensure that the equipment remains within the set movement trajectory, prevent exceeding the limited position, and avoid damage to the equipment or personnel.

[0003] The limiters in the prior art have the characteristics of small volume, compact structure, anti-interference, strong versatility, easy installation and disassembly. However, since the springs in the limiters of the prior art are generally built-in, there are problems of inconvenient maintenance and low reuse rate. Summary of the Utility Model

[0004] The utility model provides a limiter with high reuse rate and convenient maintenance, aiming to solve the problems of inconvenient maintenance and low reuse rate of the limiter in the prior art.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A limiter with high reuse rate and convenient maintenance includes a first enclosure and a second enclosure. The first enclosure and the second enclosure are connected by a mounting plate. A travel switch is arranged on the mounting plate. An activity groove is opened at one end of the mounting plate. Two mounting brackets are arranged at the bottom of the mounting plate. One end of a sleeve penetrates through the two mounting brackets and is movably connected with the two mounting brackets. A retaining piece is arranged on the sleeve and is located inside the mounting brackets. A spring is sleeved on the arc surface of the sleeve, and two ends of the spring are respectively abutted against the mounting bracket and the retaining piece. A trigger plate is arranged on the arc surface of the sleeve, and the trigger plate can move along the activity groove in the direction close to or away from the travel switch.

[0007] In a preferred embodiment of the utility model, an installation groove is opened on the sleeve, and a contact tube is arranged inside the sleeve. A fastening bolt presses the contact tube through the installation groove.

[0008] In a preferred embodiment of the utility model, both of the two mounting brackets are in the shape of '7'.

[0009] In a preferred embodiment of the utility model, through holes are arranged at both ends of the mounting bracket. One end of the sleeve penetrates through the two through holes, and the outer diameter of the sleeve is smaller than the inner diameter of the through holes.

[0010] In a preferred embodiment of the present utility model, mounting posts are provided at the bottom of the trigger plate, and one end of each mounting post penetrates through the movable slot and is inserted into the sleeve.

[0011] In a preferred embodiment of the present utility model, the length dimension of the movable slot is L, where 8 mm < L < 10 mm.

[0012] In a preferred embodiment of the present utility model, the trigger plate is arranged facing the travel switch.

[0013] In a preferred embodiment of the present utility model, the outer diameter dimension of the retaining piece is greater than the inner diameter dimension of the spring.

[0014] In a preferred embodiment of the present utility model, the spring is a compression spring.

[0015] The beneficial effects of the present utility model are as follows:

[0016] 1. At the bottom of the mounting plate designed in the present utility model, a mounting bracket is provided. The mounting bracket is movably connected to the sleeve, and a spring is sleeved on the surface of the sleeve. The spring faces the open end of the mounting frame. Through the open end of the mounting frame, the usage condition of the spring can be directly observed. When the user observes that the spring has problems such as jamming or rusting, which affect the normal use of the limiter, the user can perform maintenance on the spring through the open end of the mounting frame to ensure the normal use of the spring, and thus ensure the normal use of the limiter. At the same time, after the spring is maintained, the spring can be reused, thereby improving the reuse rate of the limiter.

[0017] 2. The spring designed in the present utility model is a compression spring. During use, under the action of the spring's recovery of deformation, the structure among the spring, the sleeve, the retaining piece, and the mounting bracket is more compact.

[0018] 3. The length dimension of the movable slot designed in the present utility model is L, where 8 mm < L < 10 mm, which avoids excessive compression of the spring during use and further ensures the normal use of the spring. Description of the Drawings

[0019] Figure 1 It is a schematic structural diagram of a limiter with a high reuse rate and convenient for maintenance provided by an embodiment of the present utility model;

[0020] Figure 2 It is a schematic structural diagram of another perspective of a limiter with a high reuse rate and convenient for maintenance provided by an embodiment of the present utility model;

[0021] Figure 3 It is a top view of a limiter with a high reuse rate and convenient for maintenance provided by an embodiment of the present utility model.

[0022] Reference numerals; wherein, 1 - first enclosing plate; 2 - second enclosing plate; 3 - mounting plate; 301 - movable groove; 4 - mounting bracket; 5 - sleeve; 501 - retaining piece; 502 - mounting groove; 6 - spring; 7 - trigger plate. Detailed implementation

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the present invention in combination with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the structure of the drawings is only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. It should be noted here that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation to the present invention.

[0024] Embodiment:

[0025] As Figures 1-3 shown, this embodiment provides a limiter with high reuse rate and convenient for maintenance, including a first enclosing plate 1 and a second enclosing plate 2. The first enclosing plate 1 and the second enclosing plate 2 are connected by a mounting plate 3. A travel switch is arranged on the mounting plate 3. One end of the mounting plate 3 is provided with a movable groove 301. Two mounting brackets 4 are arranged at the bottom of the mounting plate 3. One end of the sleeve 5 passes through the two mounting brackets 4 and is movably connected with the two mounting brackets 4. A retaining piece 501 is arranged on the sleeve 5. The retaining piece 501 is located inside the mounting bracket 4. A spring 6 is sleeved on the arc surface of the sleeve 5. Two ends of the spring 6 are respectively abutted against the mounting bracket 4 and the retaining piece 501. A trigger plate 7 is arranged on the arc surface of the sleeve 5. The trigger plate 7 can move along the movable groove 301 in the direction of approaching or departing from the travel switch.

[0026] Specifically, the first enclosing plate 1, the second enclosing plate 2 and the mounting plate 3 form an integral frame, forming an H shape. The surface of the mounting plate 3 is connected with the travel switch, and the bottom of the mounting plate 3 is connected with the mounting bracket 4. In this embodiment, the first enclosing plate 1, the second enclosing plate 2, the mounting plate 3 and the mounting bracket 4 are welded. The mounting bracket 4 is used to mount the sleeve 5 and the spring 6. The spring 6 is located below the mounting plate 3. During the use of the limiter, the user can directly observe the use condition of the spring 6.

[0027] Further, in the initial state, the retaining piece 501 is arranged close to the inner wall of one of the mounting brackets 4, and the retaining piece 501 is welded to the mounting bracket 4 to limit the position of the spring 6, so that when the sleeve 5 moves in the direction of approaching the travel switch, the spring 6 can play a buffering role on the sleeve 5 to prevent the trigger plate 7 from damaging the travel switch.

[0028] Furthermore, one end of the sleeve 5 penetrates through the two mounting brackets 4 and is movably connected to the two mounting brackets 4. A spring 6 is sleeved on the surface of the sleeve 5. A gap is provided between the sleeve 5 and the bottom of the mounting plate 3, which is convenient for overhauling the spring 6 and improving the reuse rate of the limiter.

[0029] In this embodiment, an installation groove 502 is formed on the sleeve 5, and a contact pipe is arranged inside the sleeve 5. The fastening bolt presses against the contact pipe through the installation groove 502.

[0030] Specifically, the contact pipe is made of a PVC pipe. One end of the PVC pipe extends into the sleeve 5. The outer diameter of the PVC pipe is smaller than the inner diameter of the sleeve 5. The PVC pipe can move inside the sleeve 5. As Figure 2 shown, the inner wall of the installation groove 502 is provided with threads. One end of the fastening bolt is threadedly connected to the installation groove 502 to press against the position of the PVC pipe, so that in actual application, the use length of the PVC pipe can be adjusted according to the actual situation.

[0031] Further, a gasket is arranged on the end face of the end of the fastening bolt that is threadedly connected to the installation groove 502. The gasket is made of a soft rubber material, which can press against the PVC pipe and avoid the fastening bolt from wearing the surface of the PVC pipe.

[0032] In this embodiment, both of the two mounting brackets 4 are in the shape of a "7".

[0033] Specifically, as Figure 1 shown, the mounting plate 3 and the two mounting brackets 4 cooperate with each other to form an "n"-shaped mounting frame, so that there is no obstruction at the bottom of the entire mounting frame. The spring 6 is a steel spring, and the spring 6 is spray-coated to play an anti-corrosion and rust-proof role and ensure the service life of the spring 6. The spring 6 is arranged facing the open end of the mounting frame, and the spring 6 is in a semi-closed state. During the working process of the limiter, the working state of the spring 6 can be seen. At the same time, the use situation of the spring 6 can be observed in time through the open end of the mounting frame and the spring 6 can be overhauled.

[0034] Further, the two mounting brackets 4 are respectively located at both ends of the bottom of the mounting plate 3 to expand the accommodation space of the mounting frame.

[0035] Furthermore, the mounting bracket 4 is composed of two "7"-shaped mounting brackets, which is convenient for installing the trigger plate 7.

[0036] In this embodiment, through holes are provided at both ends of the mounting bracket 4. One end of the sleeve 5 penetrates through the two through holes. The outer diameter of the sleeve 5 is smaller than the inner diameter of the through holes.

[0037] Specifically, as Figure 1As shown, the sleeve 5 can move along the central axis direction of the two through holes. The outer diameter of the retaining piece 501 is larger than the inner diameters of the through holes and the spring 6. Under the action of the retaining piece 501, the spring 6 can buffer the movement of the sleeve 5.

[0038] In this embodiment, mounting posts are provided at the bottom of the trigger plate 7. One end of the mounting post penetrates through the movable slot 301 and is inserted into the sleeve 5.

[0039] Specifically, as Figures 2-3 shown, the mounting post is inserted into the sleeve 5. An adaptation slot is formed on the sleeve 5. One end of the mounting post is welded to the trigger plate 7, and the other end of the mounting post is in interference fit with the adaptation slot. During the installation process, the outer surface of the mounting post is adapted to the inner wall of the movable slot 301 to prevent the inner wall of the movable slot 301 from interfering with the movement of the mounting post.

[0040] In this embodiment, the trigger plate 7 is arranged facing the travel switch.

[0041] Specifically, under the action of an external force, the PVC pipe drives the sleeve 5 to move towards the travel switch. The sleeve 5 drives the trigger plate 7 to move towards the travel switch. During the movement of the sleeve 5, under the action of the retaining piece 501, the spring 6 buffers the movement of the sleeve 5 to prevent the trigger plate 7 from damaging the travel switch. When the trigger plate 7 contacts the travel switch, the travel switch is triggered.

[0042] In this embodiment, the length dimension of the movable slot 301 is L, and 8 mm < L < 10 mm.

[0043] Specifically, the position of the travel switch corresponds to the position of the movable slot 301. When the trigger plate 7 moves to the end of the movable slot 301, the trigger plate 7 just triggers the travel switch to prevent the trigger plate 7 from damaging the travel switch.

[0044] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A limiter with high multiplexing rate and convenient for maintenance, characterized in that, It includes a first enclosing plate (1) and a second enclosing plate (2), the first enclosing plate (1) and the second enclosing plate (2) are connected by a mounting plate (3), a travel switch is arranged on the mounting plate (3), a movable slot (301) is opened at one end of the mounting plate (3), two mounting brackets (4) are arranged at the bottom of the mounting plate (3), one end of a sleeve (5) penetrates through the two mounting brackets (4) and is movably connected with the two mounting brackets (4), a retaining piece (501) is arranged on the sleeve (5), the retaining piece (501) is located inside the mounting bracket (4), a spring (6) is sleeved on the arc surface of the sleeve (5), two ends of the spring (6) are respectively abutted against the mounting bracket (4) and the retaining piece (501), a trigger plate (7) is arranged on the arc surface of the sleeve (5), and the trigger plate (7) can move along the movable slot (301) in a direction close to or away from the travel switch.

2. The stopper with high multiplexing rate and convenient for maintenance according to claim 1, characterized in that: An installation slot (502) is opened on the sleeve (5), a contact tube is arranged inside the sleeve (5), and a fastening bolt presses against the contact tube through the installation slot (502).

3. The stopper with high multiplexing rate and convenient for maintenance according to claim 1, characterized in that: Both of the two mounting brackets (4) are in the shape of "7".

4. A limiter with high multiplexing rate and convenient for maintenance according to claim 1, characterized in that: Through holes are arranged at both ends of the two mounting brackets (4), one end of the sleeve (5) penetrates through the two through holes, and the outer diameter dimension of the sleeve (5) is smaller than the inner diameter dimension of the through holes.

5. The stopper with high multiplexing rate and convenient for maintenance according to claim 1, characterized in that: An installation post is arranged at the bottom of the trigger plate (7), and one end of the installation post penetrates through the movable slot (301) and is inserted into the sleeve (5).

6. The stopper with high multiplexing rate and convenient for maintenance according to claim 1 is characterized in that: The length dimension of the movable slot (301) is L, and 8mm < L < 10mm.

7. The stopper with high multiplexing rate and convenient for maintenance according to claim 1, characterized in that: The trigger plate (7) is arranged facing the travel switch.

8. A limiter with high multiplexing rate and convenient for maintenance according to claim 1, characterized in that: The outer diameter dimension of the retaining piece (501) is larger than the inner diameter dimension of the spring (6).

9. A limiter with high multiplexing rate and convenient for maintenance according to claim 1, characterized in that: The spring (6) is a compression spring.

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