Graphite electrode detection device

Abstract

The invention provides a graphite electrode detection device, and relates to the technical field of graphite electrode detection. The pushing assembly is mounted on the mounting assembly; the detection assembly is mounted on the mounting assembly and the pushing assembly; the graphite electrode main body is mounted on the detection assembly; the feedback assemblies are installed on the left side and the right side of the installation assembly. The number of the installation supporting plates is two, and the two installation supporting plates are fixedly installed on the top of the installation bottom plate. When the graphite electrode main body is detected to be unqualified, the mounting top plate is in contact with the pressing switch, so that the buzzer works, a worker can conveniently know that the graphite electrode main body is detected to be unqualified, and the worker can conveniently judge whether the graphite electrode main body is detected to be qualified or not through eyes and ears; the problem that an existing detection device can only judge whether graphite electrode detection is qualified or not through eyes and cannot judge whether graphite electrode detection is qualified or not through ears is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of graphite electrode detection, and more specifically, particularly relates to a graphite electrode detection device. Background Art

[0002] Graphite electrode refers to a high-temperature resistant graphite conductive material made of petroleum coke and asphalt coke as aggregates and coal tar as binder, through raw material calcination, crushing and grinding, batching, kneading, molding, roasting, impregnation, graphitization and mechanical processing. During the production of graphite electrodes, it is necessary to detect whether the axis is aligned.

[0003] The current graphite electrode detection device is not convenient for workers to detect graphite electrodes of different sizes, and workers can only judge whether the graphite electrode detection is qualified by eyes, but cannot judge whether the graphite electrode detection is qualified by ears, resulting in inaccurate detection results. Summary of the invention

[0004] In view of this, the present invention provides a graphite electrode detection device, which has an installation component, a pushing component, a detection component, a graphite electrode body and a feedback component. When the installation top plate moves upward, the graphite electrode body is detected to be unqualified. When the installation top plate does not move, the graphite electrode body is detected to be qualified. When the graphite electrode body is detected to be unqualified, the installation top plate contacts the push switch to make the buzzer work, so that the staff can know that the graphite electrode body is unqualified and judge whether the graphite electrode body is qualified by eyes and ears.

[0005] The present invention provides a graphite electrode detection device, which specifically includes a mounting component, a pushing component, a detection component, a graphite electrode body and a feedback component; The pushing component is installed on the mounting component; the detecting component is installed on the mounting component and the pushing component; the graphite electrode body is installed on the detecting component; the feedback component is installed on the left and right sides of the mounting component; The mounting assembly includes: a mounting base plate, screw mounting through holes, a mounting support plate, a stabilizing guide shaft and a mounting top plate; the mounting base plate is a rectangular plate-shaped structure, and four screw mounting through holes are provided on the mounting base plate; there are two mounting support plates in total, and the two mounting support plates are fixedly installed on the top of the mounting base plate; there are two stabilizing guide shafts in total, and the two stabilizing guide shafts are fixedly installed on the top of the two mounting support plates; the mounting top plate is slidably installed on the outer walls of the two stabilizing guide shafts, and the bottom of the mounting top plate is in contact with the two mounting support plates.

[0006] Furthermore, the detection component also includes: a hollow guide tube and an anti-movement guide rod; there are two hollow guide tubes in total, and the two hollow guide tubes are fixedly installed on the top of the dovetail movable block B; there are two anti-movement guide rods in total, and the two anti-movement guide rods are fixedly installed on the bottom of the dovetail movable block A, and the two anti-movement guide rods are inserted into the interior of the two hollow guide tubes.

[0007] Furthermore, the installation assembly also includes: a limit retaining ring A and a return spring A; there are two limit retaining rings A in total, and the two limit retaining rings A are fixedly installed on the outer walls of the two stable guide shafts, and the tops of the two limit retaining rings A are flush with the tops of the two stable guide shafts; there are two return springs A in total, and the two return springs A are installed on the outside of the two stable guide shafts, and the two return springs A are located between the installation top plate and the two limit retaining rings A.

[0008] Furthermore, the feedback component includes: a battery, a buzzer and a trigger part; the battery is fixedly mounted on the mounting support plate on the right; the buzzer is fixedly mounted on the mounting support plate on the right, and the buzzer is located above the battery, and the buzzer is electrically connected to the battery; the trigger part is mounted on the mounting support plate on the left.

[0009] Furthermore, the pushing assembly includes: an electric telescopic rod and a pushing plate; there are two electric telescopic rods, and the two electric telescopic rods are fixedly installed on the top of the mounting top plate; the pushing plate is fixedly installed on the bottom of the two electric telescopic rods.

[0010] Furthermore, the trigger part includes: a U-shaped mounting frame and a circular protection rod; the U-shaped mounting frame is fixedly mounted on the mounting support plate on the left side; and the circular protection rod is slidably mounted inside the U-shaped mounting frame.

[0011] Furthermore, the pushing component also includes: a fixing screw; the fixing screw is threadedly connected to the inside of the pushing plate, and the fixing screw passes through the pushing plate.

[0012] Furthermore, the trigger part also includes: a mounting disc and a push switch; the mounting disc is fixedly mounted on the bottom of the circular protective rod; the push switch is fixedly mounted on the bottom of the mounting disc, and the push switch is electrically connected to the battery and the buzzer.

[0013] Furthermore, the detection assembly includes: a dovetail movable block A, a dovetail movable block B and a circular detection seat; the dovetail movable block A is slidably installed inside the pushing plate, and the top of the dovetail movable block A contacts the bottom of the fixing screw; the dovetail movable block B is slidably installed inside the mounting base plate; there are two circular detection seats in total, and the two circular detection seats are fixedly installed on the inner sides of the dovetail movable block A and the dovetail movable block B, and the inner sides of the two circular detection seats are provided with rounded corners.

[0014] Furthermore, the trigger part also includes: a limit ring B and a return spring B; the limit ring B is fixedly installed on the outer wall of the circular protection rod, and the bottom of the limit ring B is in contact with the U-shaped mounting frame; the return spring B is installed on the outside of the circular protection rod, and the return spring B is located between the U-shaped mounting frame and the mounting disc.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention pushes the flat plate to be fixedly installed at the bottom of the two electric telescopic rods, so that when the two electric telescopic rods are working, the upper circular detection seat moves downward, and when the axis of the graphite electrode body is not aligned, the upper circular detection seat is stuck on the graphite electrode body, so that the installation top plate moves upward. When the installation top plate moves upward, the graphite electrode body fails the inspection. When the axis of the graphite electrode body is aligned, the upper circular detection seat is inserted into the graphite electrode body, and the installation top plate does not move at this time. When the installation top plate does not move, the graphite electrode body passes the inspection.

[0016] 2. In the present invention, the dovetail movable block A is slidably installed inside the pushing plate, and the dovetail movable block B is slidably installed inside the mounting base plate, thereby facilitating the staff to replace two circular detection seats of appropriate sizes, and facilitating the detection of graphite electrode bodies of different sizes. The setting of the fixing screws fixes the dovetail movable block A, making the two circular detection seats more stable after replacement. In addition, the two hollow guide tubes are fixedly installed on the top of the dovetail movable block B, and the two anti-movement guide rods are fixedly installed on the bottom of the dovetail movable block A, and the two anti-movement guide rods are inserted into the two hollow guide tubes, thereby ensuring that the dovetail movable block A and the dovetail movable block B are always in the same plane, ensuring that the two circular detection seats are concentric.

[0017] 3. In the present invention, the push switch is fixedly mounted on the bottom of the mounting disc, and the push switch is electrically connected to the battery and the buzzer. Therefore, when the graphite electrode body fails the inspection, the mounting top plate contacts the push switch, causing the buzzer to work, making it easy for the staff to know that the graphite electrode body fails the inspection, and making it easy for the staff to judge whether the graphite electrode body passes the inspection by their eyes and ears. In addition, the circular protective rod is slidably mounted inside the U-shaped mounting frame, and the reset spring B is mounted outside the circular protective rod, and the reset spring B is located between the U-shaped mounting frame and the mounting disc, so that the push switch can move after being subjected to force, thereby avoiding damage to the push switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0019] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0020] In the attached picture: Figure 1 It is a three-dimensional structural schematic diagram of the present invention; Figure 2 The present invention Figure 1 Schematic diagram of the main viewing angle structure; Figure 3 It is a schematic diagram of the structure of the installation assembly of the present invention; Figure 4 It is a structural schematic diagram of the push assembly of the present invention; Figure 5 It is a schematic diagram of the structure of the detection component of the present invention; Figure 6 The present invention Figure 2 A schematic diagram of the local enlarged structure of the middle A area; Figure 7 It is a schematic structural diagram of the trigger part of the present invention; Figure 8 The present invention Figure 2 Schematic diagram of the local enlarged structure of area B in the middle.

[0021] Reference numerals list 1. Installation assembly; 101. Installation base plate; 1011. Screw installation through hole; 102. Installation support plate; 103. Stabilization guide shaft; 104. Installation top plate; 105. Limit retaining ring A; 106. Reset spring A; 2. Push assembly; 201. Electric telescopic rod; 202. Push plate; 203. Fixing screw; 3. Detection assembly; 301. Dovetail movable block A; 302. Dovetail movable block B; 303. Circular detection seat; 304. Hollow guide tube; 305. Anti-movement guide rod; 4. Graphite electrode body; 5. Feedback assembly; 501. Battery; 502. Buzzer; 503. Trigger part; 5031. U-shaped mounting frame; 5032. Circular protection rod; 5033. Installation disc; 5034. Press switch; 5035. Limit retaining ring B; 5036. Reset spring B. DETAILED DESCRIPTION

[0022] In order to make the purpose, scheme and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described in conjunction with the drawings of the specific embodiments of the present invention. Unless otherwise specified, the terms used herein have the usual meanings in the art. The same reference numerals in the drawings represent the same components.

[0023] Example 1: Please refer to Figures 1 to 8 As shown: The present invention provides a graphite electrode detection device, comprising a mounting component 1, a pushing component 2, a detection component 3, a graphite electrode body 4 and a feedback component 5; The pushing component 2 is installed on the mounting component 1; the detecting component 3 is installed on the mounting component 1 and the pushing component 2; the graphite electrode body 4 is installed on the detecting component 3; and the feedback component 5 is installed on the left and right sides of the mounting component 1.

[0024] like Figure 3 , Figure 4As shown, the mounting assembly 1 includes: a mounting base plate 101, screw mounting through holes 1011, a mounting support plate 102, a stabilizing guide shaft 103 and a mounting top plate 104; the mounting base plate 101 is a rectangular plate-shaped structure, and four screw mounting through holes 1011 are provided on the mounting base plate 101; there are two mounting support plates 102, and the two mounting support plates 102 are fixedly installed on the top of the mounting base plate 101; there are two stabilizing guide shafts 103, and the two stabilizing guide shafts 103 are fixedly installed on the top of the two mounting support plates 102; the mounting top plate 104 is slidably mounted on the two stabilizing guide shafts 103. The outer wall of the fixed guide shaft 103, and the bottom of the mounting top plate 104 is in contact with the two mounting support plates 102; the mounting assembly 1 also includes: a limit ring A105 and a return spring A106; there are two limit rings A105, and the two limit rings A105 are fixedly mounted on the outer walls of the two stable guide shafts 103, and the tops of the two limit rings A105 are flush with the tops of the two stable guide shafts 103; there are two return springs A106, and the two return springs A106 are mounted on the outside of the two stable guide shafts 103, and the two return springs A106 are located at the mounting Between the top plate 104 and the two limit retaining rings A105, the pushing component 2 includes: an electric telescopic rod 201 and a pushing plate 202; there are two electric telescopic rods 201, and the two electric telescopic rods 201 are fixedly installed on the top of the mounting top plate 104; the pushing plate 202 is fixedly installed at the bottom of the two electric telescopic rods 201; the pushing component 2 also includes: a fixing screw 203; the fixing screw 203 is threadedly connected to the inside of the pushing plate 202, and the fixing screw 203 passes through the pushing plate 202, and its specific function is: because the pushing plate 202 is fixedly installed on the two electric telescopic rods 2 01, so that when the two electric telescopic rods 201 are working, the upper circular detection seat 303 moves downward, and when the axis of the graphite electrode main body 4 is not aligned, the upper circular detection seat 303 is stuck on the graphite electrode main body 4, so that the mounting top plate 104 moves upward, and when the mounting top plate 104 moves upward, the graphite electrode main body 4 fails the inspection, and when the axis of the graphite electrode main body 4 is aligned, the upper circular detection seat 303 is inserted into the graphite electrode main body 4, and the mounting top plate 104 does not move at this time, and when the mounting top plate 104 does not move, the graphite electrode main body 4 passes the inspection.

[0025] like Figure 5 , Figure 6As shown, the detection component 3 includes: a dovetail movable block A301, a dovetail movable block B302 and a circular detection seat 303; the dovetail movable block A301 is slidably installed inside the pushing plate 202, and the top of the dovetail movable block A301 contacts the bottom of the fixing screw 203; the dovetail movable block B302 is slidably installed inside the mounting base 101; there are two circular detection seats 303, and the two circular detection seats 303 are fixedly installed on the inner sides of the dovetail movable block A301 and the dovetail movable block B302, and the inner sides of the two circular detection seats 303 are provided with rounded corners; the detection component 3 also includes: a hollow guide tube 304 and an anti-movement guide rod 305; there are two hollow guide tubes 304, and the two hollow guide tubes 304 are fixedly installed on the top of the dovetail movable block B302; there are two anti-movement guide rods 305, and the two anti-movement guide rods 305 are fixedly installed on the bottom of the dovetail movable block A301, and the two anti-movement The guide rod 305 is inserted into the interior of the two hollow guide tubes 304, and its specific function is: because the dovetail movable block A301 is slidably installed inside the pushing plate 202, and the dovetail movable block B302 is slidably installed inside the mounting base plate 101, it is convenient for the staff to replace the two circular detection seats 303 of appropriate sizes, which is convenient for detecting graphite electrode bodies 4 of different sizes. The setting of the fixing screw 203 fixes the dovetail movable block A301, making the two circular detection seats 303 more stable after replacement. Because the two hollow guide tubes 304 are fixedly installed on the top of the dovetail movable block B302, and the two anti-movement guide rods 305 are fixedly installed on the bottom of the dovetail movable block A301, and the two anti-movement guide rods 305 are inserted into the interior of the two hollow guide tubes 304, it is ensured that the dovetail movable block A301 and the dovetail movable block B302 are always in the same plane, ensuring that the two circular detection seats 303 are concentric.

[0026] Embodiment 2: Based on the first embodiment, Figure 7 , Figure 8As shown, the feedback component 5 includes: a battery 501, a buzzer 502 and a trigger part 503; the battery 501 is fixedly mounted on the mounting support plate 102 on the right; the buzzer 502 is fixedly mounted on the mounting support plate 102 on the right, and the buzzer 502 is located above the battery 501, and the buzzer 502 is electrically connected to the battery 501; the trigger part 503 is mounted on the mounting support plate 102 on the left; the trigger part 503 includes: a U-shaped mounting frame 5031 and a circular protective rod 5032; the U-shaped mounting frame 5031 is fixedly mounted on the left The trigger part 503 further comprises: a mounting disc 5033 and a push switch 5034; the mounting disc 5033 is fixedly mounted on the bottom of the circular protective rod 5032; the push switch 5034 is fixedly mounted on the bottom of the mounting disc 5033, and the push switch 5034 is electrically connected to the battery 501 and the buzzer 502; the trigger part 503 further comprises: a limit ring B5035 and a return spring B5036; the limit ring B5035 is fixedly mounted on ...; the push switch 5034 is electrically connected to the battery 501 and the buzzer 502; the trigger part 503 further comprises: a limit ring B5035 and a return spring B5036; the limit ring B5035 is fixedly mounted on the circular protective rod 5032; the push switch 5034 is fixedly mounted on the bottom of the mounting disc 5033; the push switch 5034 is electrically connected to the battery 501 and the buzzer 502; the trigger part 503 The outer wall of the circular protection rod 5032, and the bottom of the limit ring B5035 is in contact with the U-shaped mounting frame 5031; the reset spring B5036 is installed on the outside of the circular protection rod 5032, and the reset spring B5036 is located between the U-shaped mounting frame 5031 and the mounting disc 5033. Its specific function is: because the push switch 5034 is fixedly installed at the bottom of the mounting disc 5033, and the push switch 5034 is electrically connected to the battery 501 and the buzzer 502, when the graphite electrode body 4 is detected to be unqualified, the mounting top plate 104 and the push switch 5034 are pressed. The contact makes the buzzer 502 work, so that the staff can know that the graphite electrode main body 4 fails the inspection, and it is convenient for the staff to judge whether the graphite electrode main body 4 is qualified by eyes and ears. In addition, the circular protective rod 5032 is slidably installed inside the U-shaped mounting frame 5031, and the reset spring B5036 is installed outside the circular protective rod 5032, and the reset spring B5036 is located between the U-shaped mounting frame 5031 and the mounting disc 5033, so that the push switch 5034 can move after being subjected to force, thereby avoiding damage to the push switch 5034.

[0027] The specific usage and function of this embodiment are as follows: Specific usage and function of this embodiment: In the present invention, first, the staff installs the mounting base plate 101 in a suitable position by means of screws, and then the staff places the graphite electrode body 4 to be detected in the circular detection seat 303 below, and then the staff starts the two electric telescopic rods 201. When the two electric telescopic rods 201 are working, the upper circular detection seat 303 moves downward. When the axis of the graphite electrode body 4 is not aligned, the upper circular detection seat 303 is stuck on the graphite electrode body 4, so that the mounting top plate 104 moves upward. When the top plate 104 moves upward, the graphite electrode body 4 fails the inspection. When the axis of the graphite electrode body 4 is aligned, the circular inspection seat 303 above is inserted into the graphite electrode body 4. At this time, the installation top plate 104 does not move. When the installation top plate 104 does not move, the graphite electrode body 4 passes the inspection. Because the dovetail movable block A301 is slidably installed inside the push plate 202, and the dovetail movable block B302 is slidably installed inside the installation bottom plate 101, it is convenient for the staff to replace the two circular inspection seats 303 of appropriate sizes for easy inspection. The graphite electrode bodies 4 of different sizes are fixedly mounted on the top of the dovetail movable block B302, and the two anti-movement guide rods 305 are fixedly mounted on the bottom of the dovetail movable block A301, and the two anti-movement guide rods 305 are inserted into the two hollow guide tubes 304, thereby ensuring that the dovetail movable block A301 and the dovetail movable block B302 are always in the same plane, ensuring that the two circular detection seats 303 are concentric, when the graphite electrode body 4 fails the detection, the top plate 104 is installed to contact the press switch 5034, so that The operation of the buzzer 502 makes it easy for the staff to know that the graphite electrode main body 4 has failed the inspection, and makes it easy for the staff to judge whether the graphite electrode main body 4 has passed the inspection by eyes and ears. In addition, because the circular protective rod 5032 is slidably installed inside the U-shaped mounting frame 5031, and the reset spring B5036 is installed outside the circular protective rod 5032, and the reset spring B5036 is located between the U-shaped mounting frame 5031 and the mounting disc 5033, the push switch 5034 can move after being subjected to force, thereby avoiding damage to the push switch 5034.

[0028] The above description is merely an exemplary embodiment of the present invention and is not intended to limit the protection scope of the present invention. The protection scope of the present invention is determined by the appended claims.

Claims

1. A graphite electrode detection device, characterized in that: It comprises a mounting component (1), a pushing component (2), a detection component (3), a graphite electrode body (4) and a feedback component (5); The pushing component (2) is mounted on the mounting component (1); the detecting component (3) is mounted on the mounting component (1) and the pushing component (2); the graphite electrode body (4) is mounted on the detecting component (3); and the feedback component (5) is mounted on the left and right sides of the mounting component (1); The mounting assembly (1) comprises: a mounting base plate (101), screw mounting through holes (1011), a mounting support plate (102), a stabilizing guide shaft (103) and a mounting top plate (104); the mounting base plate (101) is a rectangular plate-shaped structure, and four screw mounting through holes (1011) are provided on the mounting base plate (101); there are two mounting support plates (102) in total, and the two mounting support plates (102) are fixedly mounted on the top of the mounting base plate (101); there are two stabilizing guide shafts (103) in total, and the two stabilizing guide shafts (103) are fixedly mounted on the top of the two mounting support plates (102); the mounting top plate (104) is slidably mounted on the outer walls of the two stabilizing guide shafts (103), and the bottom of the mounting top plate (104) is in contact with the two mounting support plates (102).

2. A graphite electrode detection device according to claim 1, characterized in that: The mounting assembly (1) further comprises: a limit retaining ring A (105) and a return spring A (106); two limit retaining rings A (105) are provided, and the two limit retaining rings A (105) are fixedly mounted on the outer walls of the two stable guide shafts (103), and the tops of the two limit retaining rings A (105) are flush with the tops of the two stable guide shafts (103); two return springs A (106) are provided, and the two return springs A (106) are mounted on the outside of the two stable guide shafts (103), and the two return springs A (106) are located between the mounting top plate (104) and the two limit retaining rings A (105).

3. A graphite electrode detection device according to claim 1, characterized in that: The pushing assembly (2) comprises: an electric telescopic rod (201) and a pushing plate (202); two electric telescopic rods (201) are provided, and the two electric telescopic rods (201) are fixedly mounted on the top of the mounting top plate (104); and the pushing plate (202) is fixedly mounted on the bottom of the two electric telescopic rods (201).

4. A graphite electrode detection device according to claim 3, characterized in that: The pushing assembly (2) further comprises: a fixing screw (203); the fixing screw (203) is threadedly connected to the inside of the pushing plate (202), and the fixing screw (203) passes through the pushing plate (202).

5. A graphite electrode detection device according to claim 4, characterized in that: The detection assembly (3) comprises: a dovetail movable block A (301), a dovetail movable block B (302) and a circular detection seat (303); the dovetail movable block A (301) is slidably mounted inside the push plate (202), and the top of the dovetail movable block A (301) contacts the bottom of the fixing screw (203); the dovetail movable block B (302) is slidably mounted inside the mounting base plate (101); a total of two circular detection seats (303) are provided, and the two circular detection seats (303) are fixedly mounted on the inner sides of the dovetail movable block A (301) and the dovetail movable block B (302), and the inner sides of the two circular detection seats (303) are provided with rounded corners.

6. A graphite electrode detection device according to claim 5, characterized in that: The detection assembly (3) further comprises: a hollow guide tube (304) and an anti-movement guide rod (305); two hollow guide tubes (304) are provided, and the two hollow guide tubes (304) are fixedly mounted on the top of the dovetail movable block B (302); two anti-movement guide rods (305) are provided, and the two anti-movement guide rods (305) are fixedly mounted on the bottom of the dovetail movable block A (301), and the two anti-movement guide rods (305) are inserted into the interior of the two hollow guide tubes (304).

7. A graphite electrode detection device according to claim 1, characterized in that: The feedback component (5) comprises: a battery (501), a buzzer (502) and a trigger part (503); the battery (501) is fixedly mounted on the right mounting support plate (102); the buzzer (502) is fixedly mounted on the right mounting support plate (102), and the buzzer (502) is located above the battery (501), and the buzzer (502) is electrically connected to the battery (501); and the trigger part (503) is mounted on the left mounting support plate (102).

8. A graphite electrode detection device according to claim 7, characterized in that: The trigger part (503) comprises: a U-shaped mounting frame (5031) and a circular protection rod (5032); the U-shaped mounting frame (5031) is fixedly mounted on the mounting support plate (102) on the left side; and the circular protection rod (5032) is slidably mounted inside the U-shaped mounting frame (5031).

9. A graphite electrode detection device according to claim 8, characterized in that: The trigger part (503) further comprises: a mounting disc (5033) and a push switch (5034); the mounting disc (5033) is fixedly mounted on the bottom of the circular protection rod (5032); the push switch (5034) is fixedly mounted on the bottom of the mounting disc (5033), and the push switch (5034) is electrically connected to the storage battery (501) and the buzzer (502).

10. A graphite electrode detection device according to claim 9, characterized in that: The trigger part (503) further comprises: a limit retaining ring B (5035) and a return spring B (5036); the limit retaining ring B (5035) is fixedly mounted on the outer wall of the circular protection rod (5032), and the bottom of the limit retaining ring B (5035) is in contact with the U-shaped mounting frame (5031); the return spring B (5036) is mounted on the outside of the circular protection rod (5032), and the return spring B (5036) is located between the U-shaped mounting frame (5031) and the mounting disc (5033).

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