A maintenance device for password keyboard

Abstract

The present invention discloses a maintenance device for a password keyboard, comprising a base, a detection plate provided on the base, and a bracket fixedly mounted on the base, and a telescopic rod mounted on the bracket. The maintenance device for a password keyboard described in the present invention belongs to the field of maintenance equipment. The clamping structure is suitable for clamping and fixing password keyboards of different models. Structures such as threaded rods can ensure the stability of the clamping. The clamping structure is used in conjunction with a clamping groove and can be adjusted. The elastic member can play a buffering role when the key is struck. At the same time, the elastic member can be adjusted in height, which is highly flexible to use. The industrial computer components can be stored when not in use. The support structure can support the computer body to ensure the stable storage of the computer body. The support structure is connected to the rotating shaft. When the computer body is rotated, it can be driven by the lifting support member and other structures, and no additional operation is required.

Description

Technical Field

[0001] This invention relates to the field of maintenance equipment, and in particular to a maintenance device for a keypad. Background Art

[0002] Password keypads are essential computer peripherals in financial POS systems, widely used in service industries such as telecommunications, government, transportation, commerce, taxation, and supermarkets. They are used in conjunction with banking systems, POS machines, and management systems, primarily for entering passwords. With the increasing number of bank card users and the growing popularity of card payments, password keypads are receiving more and more attention. A password keypad consists of a main body, keys, a circuit board, and a display screen. When a password keypad is damaged or malfunctions, it is necessary to test the key sensitivity and circuit board, thus requiring repair equipment. Existing password keypad repair equipment uses a striking mechanism to detect key presses, with the results fed back by an industrial camera. However, because the striking point cannot be adjusted, its use is limited. Furthermore, when used with a fixed structure for the keypad, although some adjustments are possible, the fixed structure itself cannot be changed, further limiting its use. Additionally, the industrial computer on the testing equipment cannot be stored, which is detrimental to the protection of the corresponding function keys and the display screen, resulting in generally poor performance. Summary of the Invention

[0003] The main objective of this invention is to provide a repair device for password keypads, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0005] A repair device for a keypad includes a base, a detection plate mounted on the base, and a bracket fixedly mounted on the base. A telescopic rod is mounted on the bracket, and a connecting rod is provided at the lower end of the telescopic rod. A clamping structure is mounted on the detection plate, and the clamping structure includes a first fixed rod, a second fixed rod, and a clamping frame. The first and second fixed rods are mounted on the detection plate, and the clamping frame is mounted on the second fixed rod. An elastic element, including a threaded sleeve, is mounted at the lower end of the connecting rod. The threaded sleeve is connected to the connecting rod. At the lower end of the rod, an industrial computer component is mounted on the base. The industrial computer component includes a computer body, a rotating base, and a rotating shaft. The rotating base is fixedly mounted on the base, and the computer body is mounted on the rotating base. The base is provided with a support structure, which includes a storage slot, a gear, a rack, a follower rod, and a lifting support component. The storage slot is opened on the base, the gear is set on the rotating shaft, the rack is connected to the follower rod, and the rack and follower rod are set in the storage slot. The lifting support component is set on the follower rod.

[0006] Preferably, the base has a support foot at the corner of the lower surface, and the lower end of the support foot is provided with a wear-resistant plate. The support foot is fixedly connected to the base, and the support feet are symmetrically arranged on the base.

[0007] Preferably, an adjustment mechanism is provided between the detection plate and the base, and the detection plate is installed on the base through the adjustment mechanism. A locking groove is provided on the detection plate.

[0008] Preferably, the clamping structure further includes a clamping post, which is fixed to the lower surface of the first fixing rod and the second fixing rod, and the clamping post is engaged with the clamping groove. The first fixing rod and the second fixing rod are mounted on the detection plate through the clamping post.

[0009] Preferably, the clamping frame includes a movable clamping plate, a round rod, a connecting seat, and a threaded rod. The movable clamping plate is fixedly connected to the round rod, and the round rod passes through the second fixed rod. The connecting seat is fixedly installed on the movable clamping plate. The threaded rod passes through the second fixed rod, and one end of the threaded rod is connected to the connecting seat. A knob is fixedly installed on the other end of the threaded rod, and the threaded rod is threadedly connected to the second fixed rod.

[0010] Preferably, the bracket is provided with a lifting mechanism inside, the upper end of the telescopic rod is connected to the lifting mechanism, the lower end of the connecting rod is provided with an external thread, and a detection camera is fixedly installed on the bracket near the telescopic rod.

[0011] Preferably, the elastic element further includes an elastic sheet and a click head, the elastic sheet and the click head are fixedly connected, and the elastic sheet is fixedly connected to the threaded sleeve, the threaded sleeve is threadedly connected to the external thread at the lower end of the connecting rod.

[0012] Preferably, the industrial computer assembly further includes an operation panel, the rotating shaft is fixed to the computer body and rotatably connected to a rotating base, the computer body is rotatably mounted on the rotating base via the rotating shaft, and the operation panel is fixedly mounted at the upper end of the computer body.

[0013] Preferably, the gear is fixedly mounted on the rotating shaft, the rack and follower rod are slidably mounted in the storage groove, and the rack contacts the gear. The rack and gear are meshed together. The lifting support is located on the follower rod away from the rack, and the follower rod has a hole.

[0014] Preferably, the lifting support includes a lifting rod, a threaded joint, and a support plate. The threaded joint is fixed to the lower end of the lifting rod, and the lifting rod passes through a hole on the follower rod. The threaded joint is threadedly connected to the hole on the follower rod, and the support plate is fixed to the upper end of the lifting rod.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The maintenance equipment for keypads adopts a clamping structure, which is suitable for clamping and fixing keypads of different models, thus improving the scope of use. It also has a self-locking effect by using a threaded rod and other structures, which can ensure the stability of clamping.

[0016] 2. The clamping structure, used in conjunction with the locking groove, is adjustable, further improving its flexibility of use;

[0017] 3. The elastic element can buffer the keypad when the keys are pressed, protecting the keypad. The height of the elastic element can also be adjusted, making it highly flexible to use.

[0018] 4. It uses industrial computer components and can be stored away when not in use;

[0019] 5. The support structure provides support for the main body of the computer, ensuring stable storage. The support structure is connected to the rotation axis, and when the main body of the computer rotates, it can drive the lifting support components and other structures. No additional operation is required. The structure is simple and the performance is excellent. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a maintenance device for a password keypad according to the present invention.

[0021] Figure 2 This is a schematic diagram of the clamping structure of a maintenance device for a password keypad according to the present invention.

[0022] Figure 3 This is a schematic diagram of the structure of the clamping frame of the maintenance equipment for a password keypad according to the present invention;

[0023] Figure 4 This invention relates to a repair device for a keypad. Figure 1 Enlarged view of point A in the middle;

[0024] Figure 5 This is a schematic diagram of the structure of an elastic component for a maintenance device for a keypad according to the present invention;

[0025] Figure 6 This is a schematic diagram of the structure of an industrial computer component for a repair device of a password keyboard according to the present invention.

[0026] Figure 7 This is a schematic diagram of the support structure for a maintenance device for a keypad according to the present invention.

[0027] Figure 8 This is a structural schematic diagram of a lifting support component for a maintenance device used for a keypad according to the present invention.

[0028] In the diagram: 1. Base; 2. Detection plate; 3. Clamping structure; 301. First fixing rod; 302. Second fixing rod; 303. Clamping frame; 3031. Movable clamping plate; 3032. Round rod; 3033. Connecting seat; 3034. Threaded rod; 304. Clamping column; 4. Bracket; 5. Telescopic rod; 6. Connecting rod; 7. Elastic element; 701. Threaded sleeve; 702. Elastic sheet; 703. Clicking head; 8. Industrial computer component; 801. Computer body; 802. Rotary seat; 803. Rotary shaft; 804. Operation panel; 9. Support structure; 901. Storage slot; 902. Gear; 903. Rack; 904. Follower rod; 905. Lifting support component; 9051. Lifting rod; 9052. Threaded joint; 9053. Support plate; 10. Support leg; 11. Clamping slot; 12. Detection camera. Detailed Implementation

[0029] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0030] Example 1

[0031] like Figures 1-8 As shown, a maintenance device for a keypad includes a base 1, a detection plate 2 mounted on the base 1, and a bracket 4 fixedly mounted on the base 1. A telescopic rod 5 is mounted on the bracket 4, and a connecting rod 6 is provided at the lower end of the telescopic rod 5. A clamping structure 3 is mounted on the detection plate 2, and the clamping structure 3 includes a first fixing rod 301, a second fixing rod 302, and a clamping frame 303. The first fixing rod 301 and the second fixing rod 302 are mounted on the detection plate 2, and the clamping frame 303 is mounted on the second fixing rod 302. An elastic element 7 is mounted at the lower end of the connecting rod 6, and the elastic element 7 includes a threaded sleeve 701 connected to the lower end of the connecting rod 6. The base 1 is equipped with... An industrial computer component 8 is provided, which includes a computer body 801, a rotating base 802, and a rotating shaft 803. The rotating base 802 is fixedly installed on a base 1, and the computer body 801 is installed on the rotating base 802. A support structure 9 is provided on the base 1, and the support structure 9 includes a storage slot 901, a gear 902, a rack 903, a follower rod 904, and a lifting support 905. The storage slot 901 is opened on the base 1, the gear 902 is set on the rotating shaft 803, the rack 903 is connected to the follower rod 904, and the rack 903 and the follower rod 904 are set in the storage slot 901. The lifting support 905 is set on the follower rod 904.

[0032] In the above embodiments, a support leg 10 is provided at the corner of the lower surface of the base 1, and a wear-resistant plate is provided at the lower end of the support leg 10. The support leg 10 is fixedly connected to the base 1, and the support leg 10 is symmetrically arranged on the base 1. An adjustment mechanism is provided between the detection plate 2 and the base 1, and the detection plate 2 is installed on the base 1 through the adjustment mechanism. A locking groove 11 is provided on the detection plate 2.

[0033] In the above embodiments, the clamping structure 3 further includes a clamping post 304, which is fixed to the lower surface of the first fixing rod 301 and the second fixing rod 302, and the clamping post 304 is engaged with the clamping groove 11. The first fixing rod 301 and the second fixing rod 302 are mounted on the detection plate 2 through the clamping post 304. The clamping frame 303 includes a movable clamping plate 3031, a round rod 3032, a connecting seat 3033, and a threaded rod 3034. The movable clamping plate 3031 is fixedly connected to the round rod 3032, and the round rod 3032 passes through the second fixing rod 302. The connecting seat 3033 is fixedly installed on the movable clamping plate 3031. On the movable clamping plate 3031, a threaded rod 3034 is inserted through the second fixed rod 302, and one end of the threaded rod 3034 is connected to the connecting seat 3033. A knob is fixedly installed on the other end of the threaded rod 3034, and the threaded rod 3034 and the second fixed rod 302 are threadedly connected. The clamping structure 3 is suitable for clamping and fixing different models of keypads, which improves the scope of use. The threaded rod 3034 and other structures have a self-locking effect, which can ensure the stability of clamping. The clamping structure 3 is used in conjunction with the locking groove 11, which can be adjusted, further improving the flexibility of use.

[0034] In the above embodiments, the bracket 4 is internally equipped with a lifting mechanism, the upper end of the telescopic rod 5 is connected to the lifting mechanism, the lower end of the connecting rod 6 is provided with an external thread, and a detection camera 12 is fixedly installed on the bracket 4 near the telescopic rod 5. The elastic element 7 also includes an elastic sheet 702 and a click head 703. The elastic sheet 702 and the click head 703 are fixedly connected, and the elastic sheet 702 is fixedly connected to the threaded sleeve 701. The threaded sleeve 701 is threadedly connected to the external thread at the lower end of the connecting rod 6. Through the provided elastic element 7, a buffering effect can be achieved when the key is pressed, which can protect the keypad. At the same time, the height of the elastic element 7 can be adjusted, making it highly flexible in use.

[0035] In the above embodiments, the industrial computer assembly 8 also includes an operation panel 804, a rotating shaft 803 fixed to the computer body 801, and the rotating shaft 803 rotatably connected to a rotating base 802. The computer body 801 is rotatably mounted on the rotating base 802 via the rotating shaft 803. The operation panel 804 is fixedly mounted at the upper end of the computer body 801. A gear 902 is fixedly mounted on the rotating shaft 803. A rack 903 and a follower rod 904 are slidably mounted in a storage slot 901, and the rack 903 contacts the gear 902, with the rack 903 and gear 902 meshing together. A lifting support 905 is located on the follower rod 904 at a position away from the rack 903, and the follower rod 904 has a hole. The lifting support 905 includes a lifting rod 9051 and a threaded... The connector 9052 and the support plate 9053 are designed with threaded connector 9052 fixed to the lower end of lifting rod 9051, and lifting rod 9051 passing through a hole in follower rod 904. Threaded connector 9052 is threadedly connected to the hole in follower rod 904. Support plate 9053 is fixed to the upper end of lifting rod 9051. The industrial computer component 8 is used and can be stored when not in use. The support structure 9 provides support for the computer body 801, ensuring stable storage of the computer body 801. The support structure 9 is connected to the rotating shaft 803. When the computer body 801 rotates, it can drive the lifting support component 905 and other structures. The computer body 801 drives the rotation, eliminating the need for additional operation. The structure is simple and the performance is excellent.

[0036] It should be noted that when using the entire maintenance equipment, the equipment should be placed in a suitable location, with the base 1 stably placed using the support legs 10. The detection plate 2 should be installed on the base 1. The computer body 801 in the industrial computer assembly 8 should be connected to the power supply. At the same time, the detection camera 12 and the lifting mechanism in the bracket 4 should be connected to the computer body 801, thus completing the corresponding connection work of the entire maintenance equipment. After the maintenance equipment is connected, the maintenance work of the keypad can begin. When the keypad needs to be tested, the keypad should be placed between the clamping structures 3 on the detection plate 2. The keypad should be moved so that its side contacts the first fixing rod 301. Then, the threaded rod 3034 in the clamping frame 303 should be rotated by the knob. The threaded rod 3034 is in the first... The threaded rod 3034 rotates and moves on the second fixed rod 302. Since the end of the threaded rod 3034 is connected to the connecting seat 3033 and can rotate to a certain extent, when the threaded rod 3034 rotates and moves, it exerts a force on the connecting seat 3033, thereby moving the movable clamping plate 3031 through the connecting seat 3033. During this process, the movable clamping plate 3031 moves on the second fixed rod 302 via the round rod 3032, thus ensuring stability during movement. When the movable clamping plate 3031 abuts against the side of the keypad, the threaded rod 3034 and the second fixed rod 302 have a self-locking effect. At this time, under the combined action of the movable clamping plate 3031 and the first fixed rod 301, the keypad is clamped and fixed on the detection plate 2, thus... After the keypad is secured, the computer unit 801 in the industrial computer component 8 controls the operation. The detection board 2 moves under the drive mechanism on the base 1, thus moving the keypad. During this process, the detection camera 12 at the end of the bracket 4 identifies the keypad's position and feeds the information back to the computer unit 801. The keypad stops when it reaches the correct position. At this point, the corresponding keys on the keypad are located below the connecting rod 6 at the lower end of the telescopic rod 5. Then, the key sensitivity is tested. During testing, the lifting mechanism inside the bracket 4 is activated, raising and lowering the telescopic rod 5 and the connecting rod 6. The connecting rod 6, in turn, raises and lowers the elastic element 7, thereby using the elastic element 7 to test the sensitivity of the corresponding keys. During the key-pressing process using the elastic element 7, the detection plate 2 moves the keypad accordingly, allowing the elastic element 7 to detect key presses on different keys. During this detection, the detection camera 12 monitors the keypad's display screen in real time and feeds the monitoring image back to the computer body 801. Based on the feedback, the computer body 801 can determine the sensitivity of the keypad keys and whether there are any circuit board malfunctions. During key sensitivity testing, because the elastic element 7 descends to a consistent height each time, it provides a direct visual indication of whether a key is malfunctioning, ensuring testing accuracy. When the click head 703 contacts a key during key presses, it experiences a reaction force from the key.Under the action of the reaction force, the distance between the click head 703 and the threaded sleeve 701 decreases, and the elastic plate 702 deforms, thus forming a certain buffer to prevent damage to the keypad due to excessive stroke. When necessary, the position of the elastic element 7 on the connecting rod 6 can be adjusted. During adjustment, the entire elastic element 7 is rotated, and the threaded sleeve 701 rotates and rises and falls at the lower end of the connecting rod 6, thereby raising and lowering the elastic plate 702 and the click head 703 until the entire elastic element 7 moves to the corresponding position. The structure is simple and the performance is excellent. After the testing is completed, the threaded rod 3034 is rotated by the knob, and the threaded rod 3034 moves the movable clamp 3031 away from the first fixed rod 301, and then the keypad is no longer clamped. The keypad can be removed for repair. The blank end of base 1 can be used as a workbench. When testing different keypad models, the position of clamping structure 3 can be adjusted. To adjust, first lift the first fixing rod 301 and the second fixing rod 302 using the fixing blocks. Then move the first fixing rod 301 and the second fixing rod 302 to the appropriate positions, attaching them to the detection plate 2. At this point, the clamping pins 304 on the lower surface of the fixing rods engage with the clamping grooves 11 on the detection plate 2, thus fixing the first fixing rod 301 and the second fixing rod 302. This completes the clamping structure setup. After adjusting the position 3, the keypad can be clamped for testing. During the keypad inspection, the computer body 801 is placed vertically. There is a certain friction between the gear 902 and the rotating base 802, ensuring the stability of the computer body 801 when placed vertically. The computer body 801 can be used normally. At this time, the lifting support 905 in the support structure 9 is located in the storage slot 901 and will not affect the normal use of the base 1. After the equipment is used, the computer body 801 can be stored. When storing, simply flip the computer body 801 forward. The computer body 801 rotates on the rotating base 802 through the rotating shaft 803. During this process, the rotating shaft 803 will drive the gear 902. 02. Rotation: Due to the meshing connection between gear 902 and rack 903, when gear 902 rotates, rack 903 moves along the storage groove 901 on base 1, simultaneously moving follower rod 904 and lifting support 905. As lifting support 905 moves, the lower end of threaded connector 9052 contacts the inclined surface in storage groove 901. Under the action of the inclined surface, threaded connector 9052 and lifting rod 9051 rise with support plate 9053. When the computer body 801 is flipped to a horizontal position, the threaded connector 9052 at the lower end of lifting rod 9051 is located on the horizontal bottom surface in storage groove 901, and support plate 9053 is supported on the operation plates 804 at both ends of computer body 801.At this point, with the combined action of the rotating base 802 and the support plate 9053, the computer body 801 can be placed horizontally, thus achieving the storage of the computer body 801. Since the display screen and function keys on the computer body 801 face downwards, they provide some protection, ensuring the integrity of these structures. When the computer body 801 needs to be used, it is rotated via the control panel 804. The computer body 801 rotates to a vertical position via the rotating shaft 803. During this process, the gear 902, carrying the rack 903, moves along the storage groove 9053... As the computer body 801 moves, the follower rod 904 moves along with the lifting support 905. Once the computer body 801 is upright, under gravity, the support plate 9053 at the upper end of the lifting rod 9051 contacts the follower rod 904. The entire lifting support 905 is then housed in the storage slot 901, without affecting the normal use of the base 1. During the lifting process of the lifting support 905, the support plate 9053 and the threaded joint 9052 act as limiters, preventing the lifting rod 9051 from falling off and ensuring relative stability. The structure is simple and the performance is excellent.

[0037] The foregoing describes the principles of use, features, and beneficial effects of the present invention. Those skilled in the art will understand from the foregoing that it does not limit the invention; the embodiments and description above illustrate the basic principles and features of the invention. Various changes and modifications can be made to the invention while remaining consistent with its concept, and all such modifications should fall within the scope of protection claimed by the present invention.

Claims

1. A maintenance device for a keypad, comprising a base (1), a detection plate (2) disposed on the base (1), and a bracket (4) fixedly mounted on the base (1), a telescopic rod (5) mounted on the bracket (4), and a connecting rod (6) disposed at the lower end of the telescopic rod (5), characterized in that: The detection plate (2) is equipped with a clamping structure (3), which includes a first fixing rod (301), a second fixing rod (302), and a clamping frame (303). The first fixing rod (301) and the second fixing rod (302) are mounted on the detection plate (2), and the clamping frame (303) is mounted on the second fixing rod (302). An elastic element (7) is mounted on the lower end of the connecting rod (6), and the elastic element (7) includes a threaded sleeve (701). The threaded sleeve (701) is connected to the lower end of the connecting rod (6). The elastic element (7) also includes an elastic sheet (702) and a clicking head (703). The elastic sheet (702) and the clicking head (703) are fixedly connected, and the elastic sheet (702) is fixedly connected to the threaded sleeve (701). The threaded sleeve (701) is threadedly connected to the external thread at the lower end of the connecting rod (6). The base ( 1) An industrial computer component (8) is installed on the base (1), and the industrial computer component (8) includes a computer body (801), a rotating base (802) and a rotating shaft (803). The rotating base (802) is fixedly installed on the base (1), and the computer body (801) is installed on the rotating base (802). A support structure (9) is provided on the base (1), and the support structure (9) includes a storage groove (901), a gear (902), a rack (903), a follower rod (904) and a lifting support (905). The storage groove (901) is opened on the base (1), the gear (902) is set on the rotating shaft (803), the rack (903) is connected to the follower rod (904), and the rack (903) and the follower rod (904) are set in the storage groove (901). The lifting support (905) is set on the follower rod (904).

2. The maintenance device for a keypad according to claim 1, characterized in that: The base (1) has a support foot (10) at the corner of its lower surface, and a wear-resistant plate is provided at the lower end of the support foot (10). The support foot (10) is fixedly connected to the base (1), and the support foot (10) is symmetrically arranged on the base (1).

3. The maintenance device for a keypad according to claim 1, characterized in that: An adjustment mechanism is provided between the detection plate (2) and the base (1), and the detection plate (2) is installed on the base (1) through the adjustment mechanism. A clamping groove (11) is provided on the detection plate (2).

4. The maintenance device for a keypad according to claim 3, characterized in that: The clamping structure (3) further includes a clamping post (304), which is fixed to the lower surface of the first fixing rod (301) and the second fixing rod (302), and the clamping post (304) is engaged with the clamping groove (11). The first fixing rod (301) and the second fixing rod (302) are installed on the detection plate (2) through the clamping post (304).

5. A repair device for a keypad according to claim 4, characterized in that: The clamping frame (303) includes a movable clamping plate (3031), a round rod (3032), a connecting seat (3033), and a threaded rod (3034). The movable clamping plate (3031) is fixedly connected to the round rod (3032), and the round rod (3032) passes through the second fixed rod (302). The connecting seat (3033) is fixedly installed on the movable clamping plate (3031). The threaded rod (3034) passes through the second fixed rod (302), and one end of the threaded rod (3034) is connected to the connecting seat (3033). A knob is fixedly installed on the other end of the threaded rod (3034), and the threaded rod (3034) is threadedly connected to the second fixed rod (302).

6. The maintenance device for a keypad according to claim 1, characterized in that: The bracket (4) is equipped with a lifting mechanism inside. The upper end of the telescopic rod (5) is connected to the lifting mechanism. The lower end of the connecting rod (6) is provided with an external thread. A detection camera (12) is fixedly installed on the bracket (4) near the telescopic rod (5).

7. The maintenance device for a keypad according to claim 1, characterized in that: The industrial computer assembly (8) also includes an operation panel (804), the rotating shaft (803) is fixed on the computer body (801), and the rotating shaft (803) is rotatably connected to the rotating base (802). The computer body (801) is rotatably mounted on the rotating base (802) via the rotating shaft (803), and the operation panel (804) is fixedly mounted at the upper end of the computer body (801).

8. The maintenance device for a keypad according to claim 1, characterized in that: The gear (902) is fixedly installed on the rotating shaft (803), the rack (903) and the follower rod (904) are slidably installed in the storage groove (901), the rack (903) and the gear (902) are meshed together, the lifting support (905) is located on the follower rod (904) away from the rack (903), and the follower rod (904) has a hole.

9. A repair device for a keypad according to claim 8, characterized in that: The lifting support (905) includes a lifting rod (9051), a threaded joint (9052), and a support plate (9053). The threaded joint (9052) is fixed to the lower end of the lifting rod (9051), and the lifting rod (9051) passes through a hole in the follower rod (904). The threaded joint (9052) is threadedly connected to the hole in the follower rod (904). The support plate (9053) is fixed to the upper end of the lifting rod (9051).

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