A pointer press-in device

Abstract

The utility model relates to instrument installation frock equipment technical field, concretely relates to a pointer press -in equipment is used for installing pointer on instrument panel, it includes bottom support and with bottom support flip -over cooperation's flap, the jacking sliding table spare for bearing instrument panel is equipped with in the bottom support middle part, the connecting link spare of bottom support lower is equipped with the jacking sliding table spare, the connecting link spare is connected rotatable handle, handle passes through the rotary linkage connecting link spare, to drive jacking sliding table spare to carry out vertical direction displacement, the flap sets up pointer, need not operating personnel to install in the way of finger pressing, use the connecting link spare driven by handle to control the up and down displacement of jacking sliding table spare, after setting up instrument panel and pointer on jacking sliding table spare and pointer respectively, after confirming that the state of pointer and instrument panel is qualified, can drive handle rotation to drive jacking sliding table to lift, to let pointer embed set up install on instrument panel, reduce the damage of the installation mode of finger pressing to the installation personnel.

Description

Technical Field

[0001] This utility model relates to the field of instrument installation tooling equipment technology, and in particular to a pointer pressing device. Background Technology

[0002] With the rapid development of automobiles, aircraft and other equipment, instruments, as data indicators, are also widely used in various equipment. In the past, when installing pointers on the instrument panel, manual pressing was often used. After the installer pressed the pointer onto the instrument panel with their bare hands, they needed to adjust it multiple times to confirm that the pointer was installed in place. This not only affected the installation efficiency, but the pressing process also caused damage to the installer's fingers. In view of this, there is an urgent need to improve the installation efficiency between the pointer and the instrument panel and to eliminate the previous method of manual pressing, so as to reduce the injury to the installers during the installation of the pointer and the instrument panel. Utility Model Content

[0003] The purpose of this invention is to provide a pointer pressing device to improve the installation efficiency of pointers and dashboards and reduce labor injuries to installers.

[0004] To achieve the above objectives, this utility model provides a pointer pressing device for mounting pointers on an instrument panel. The device includes a base and a flip plate that flips in conjunction with the base. The base has a lifting slide for supporting the instrument panel in its center. A connecting rod is located under the base, connecting to the lifting slide. A rotatable handle is externally connected to the connecting rod. The handle rotates in conjunction with the connecting rod to drive the lifting slide to move vertically. The flip plate has a pointer clamp for holding the pointer, and the pointer clamp rotates in conjunction with the flip plate.

[0005] This application proposes a pointer pressing device that eliminates the previous method of manually installing pointers and dashboards. The device has a lifting slide for mounting the dashboard and a flip plate for mounting the pointer in the center of the base. The dashboard is mounted on the lifting slide, and the pointer is mounted on the flip plate. The flip plate is then flipped, and an external handle is rotated. The rotation of the handle causes a connecting rod to vertically displace the lifting slide, aligning the dashboard with the pointer for mounting. A motor is provided at the dashboard and pointer mounting point, with its output connected to the pointer. The motor output is interference-fitted with the pointer, ensuring a stable connection between the pointer and the dashboard and allowing it to detach from the pointer clamp after installation.

[0006] The lifting slide includes a support base and a connecting plate. Several connecting guide rods are fixed on the connecting plate, and each connecting guide rod is fitted with a spring. The two ends of the spring abut against the support base and the connecting plate, respectively.

[0007] The support base is used to support the instrument panel. The connecting plate is provided with the connecting guide rod. The connecting guide rod allows the movement between the base plate and the support base to be carried out in the direction of the length extension of the guide rod. The spring is provided to cooperate with the rotation of the handle to provide the pointer pressing force. That is, when the spring is compressed to the maximum compression amount, it drives the support base to move towards the flip plate to complete the installation of the pointer and the instrument panel.

[0008] The support base includes a support plate and a base plate. The support plate is provided with a limiting rod, a positioning pin, a height-equalizing support rod, two socket groups, two cylinders, and a pressure plate. The limiting rod is distributed on the outer edge of the support plate. The positioning pin is set on the support plate to fix the instrument panel. The cylinder is set under the support plate, and its output end is connected to the socket group. The socket group is movably engaged with the support plate through its corresponding cylinder. The base plate is set under the support plate and is adapted to the connecting guide rod. The pressure plate is set on both sides of the support plate. The top of the pressure plate is provided with a wedge-shaped guide slope, the width of which gradually increases from bottom to top. The height-equalizing support rods are distributed on the support plate.

[0009] The support plate houses the various components. The limiting rod primarily limits the maximum degree of flip-up of the flap, and aligns with the flap after it flips. The positioning pin is embedded in the slot of the instrument panel to house it. The leveling support rod primarily supports the instrument panel and, in conjunction with the flap, fixes its position, ensuring a stable insertion process for the pointer. Two socket groups and two corresponding cylinders are provided, primarily for mounting two different instrument panel structures, such as... Figure 2 As shown, there are two types of instrument panels to be installed, and their back-side connector positions are different. For different instrument panel connector positions, different cylinders can be activated to drive different socket groups to move. After inserting the corresponding connector, a motor return-to-zero signal is sent to the instrument. After returning to the position, the pointer is pressed in. The pressure plate moves up and down along with the vertical displacement of the lifting slide, causing the wedge-shaped guide slope to move up and down.

[0010] The lower surface of the support plate is provided with a lifting slide guide rod, which is distributed at the four lower corners of the support plate. The end of the lifting slide guide rod passes through the base and slides with the base.

[0011] The lifting slide guide rod is mainly used to cooperate with the base support to limit the vertical displacement path of the support plate and prevent the support plate from being misaligned.

[0012] The base includes a support plate with a square hole in the middle that matches the lifting slide. A locking component, a support arm, and a tension spring rod are provided above the support plate. The locking component is movably engaged with the flip plate, and the support arm is rotatably connected to the flip plate. The tension spring rod is located on one side of the locking component and has a first threaded hole. A bolt is installed in the first threaded hole, and the tension spring rod is connected to the locking component by stretching the tension spring through the bolt.

[0013] The square hole allows the lifting slide to move up and down. The locking member engages with the wedge-shaped guide slope and locks the flap. The locking member is connected to the tension spring rod via the tension spring. The tension spring is in a stretched state and maintains a rotational tendency. However, under the action of the wedge-shaped guide slope, the movable part of the locking member tilts in the opposite direction to the rotational tendency. A bolt is placed inside the first threaded hole so that one end of the tension spring can be hooked and fixed. The support arm serves as a support for the flap and is rotatably connected to the flap.

[0014] The locking component includes a base and a locking head. The locking head and the base are rotatably connected by a first rotating shaft. The locking head is provided with a second threaded hole, which is located above the first rotating shaft. A bolt is placed in the second threaded hole to connect the other end of the tension spring.

[0015] The base is used to house the locking head, which is a movable part of the locking member and is rotatably connected to the base via the first rotating shaft. The locking head has a second threaded hole on its side wall to connect to the tension spring. Under the action of the tension spring, the locking head maintains a rotational tendency, but the non-operating lifting slide is at a lower height, which drives the wedge-shaped guide slope to drive the locking head to flip in the opposite direction of the movement tendency, increasing the elastic potential energy of the tension spring.

[0016] The locking head has a groove at the top, and a roller is provided in the groove. The roller is rotatably connected to the groove via a second rotating shaft. There is a gap between the roller and the bottom of the groove, and the gap is adapted to the flip plate.

[0017] The groove, in conjunction with the roller, leaves a gap to lock the flap. That is, after the flap rotates, the lifting slide will cause the locking head to flip and lock the flap. The roller is arranged with a gap so that the flap and the locking head can be smoothly disengaged.

[0018] The locking head is further provided with a cam follower on its side wall, which is located between the second rotating shaft and the first rotating shaft. The cam follower is pressed to drive the locking head to produce a directional tilt.

[0019] The cam follower is mainly used to cooperate with the wedge-shaped guide slope. That is, the wedge-shaped guide slope restricts the rotation of the locking head by pressing the cam follower. The resulting directional tilting has a rotation direction opposite to the movement trend of the locking head.

[0020] The flap is provided with a handle above it, and a flap lock, an elastic pressure rod and a limiting end are provided below it. The flap lock is coupled to the base support, the elastic pressure rod is set to correspond one-to-one with the height-equal support rod, and the limiting end is set to correspond one-to-one with the limiting rod.

[0021] The flap lock is used to cooperate with the locking head to restrict the flap, so that the flap is in a non-free state and prevents the flap from being pushed open. The elastic pressure rod corresponds to the equal height support rod and clamps the instrument panel to restrict the instrument panel and prevent the instrument panel from shifting after the flap is flipped. After the locking head restricts the maximum flip angle of the flap, the maximum flip angle of the handle, that is, the maximum lifting height of the lifting slide, is also restricted by the limiting block. The limiting block is not shown in the drawings of this application specification. The limiting block limits the rotation stroke of the handle. That is, after the pointer and the instrument panel are installed, the filling degree of the pointer and the instrument panel will be determined by the maximum flip angle of the flap and the highest position of the lifting slide, without the need for subsequent adjustment.

[0022] The flap plate is also provided with an arc-shaped channel and a strip-shaped hole that penetrates the flap plate. The arc-shaped channel is arc-shaped and penetrates the flap plate. The strip-shaped holes are arranged in pairs and located above the pointer clamp. The strip-shaped holes are used to expose the locking threaded holes on the pointer clamp.

[0023] The arc-shaped channel has a structure consistent with the reading display range on the instrument panel, providing an observation window for operators to manually adjust the pointer angle and obtain pointer position information, so that the pointer returns to a predetermined position, which can be set to 0. The strip-shaped hole is used to display the locking threaded hole on the pointer clamp. With the cooperation of the external bolt, the pointer clamp can be fixed in the strip-shaped hole. Because a positioning shaft is provided between the pointer clamp and the flip plate, the pointer clamp and the flip plate are in a rotational engagement. After the pointer is adjusted to the predetermined position, the bolt can be inserted into the locking threaded hole from the strip-shaped hole to lock the rotation angle of the pointer clamp.

[0024] The pointer pressing device disclosed in this utility model, based on the existing pointer instrument panel installation, eliminates the need for operators to press with their fingers during installation. It uses a linkage driven by the handle to control the vertical displacement of the lifting slide. After the instrument panel and pointer are respectively placed on the lifting slide and the pointer, and the pointer and instrument panel are confirmed to be in good condition, the handle can be rotated to lift the lifting slide, allowing the pointer to be embedded in the instrument panel. This reduces the risk of injury to installers from finger pressing and improves the installation quality of the instrument panel and pointer, making the installation state of the pointer and instrument panel controllable. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a diagram showing the installation of the instrument panel and pointers.

[0027] Figure 2 These are schematic diagrams of two instrument panels to be installed.

[0028] Figure 3 This is a schematic diagram of the overall structure of a pointer pressing device according to this utility model.

[0029] Figure 4 This is an isometric schematic diagram of the flip plate flipping state of a pointer pressing device according to this utility model.

[0030] Figure 5 This is a schematic diagram of the structure of a locking head for a pointer pressing device according to this utility model.

[0031] Figure 6 This is a top-view schematic diagram of a pointer pressing device according to this utility model.

[0032] Figure 7 This is a cross-sectional structural schematic diagram of a pointer pressing device according to the present invention.

[0033] Figure 8 This is a schematic diagram of a bearing plate supporting an instrument panel in a pointer pressing device according to this utility model.

[0034] Figure 9 This is a schematic diagram of the pointer pressing device of this utility model in the state where the flip handle is not rotated.

[0035] 1. Base support; 2. Flip plate; 3. Lifting slide; 4. Connecting rod; 5. Handle; 6. Pointer clamp; 7. Instrument panel; 8. Pointer; 11. Support plate; 12. Square hole; 13. Locking component; 14. Support arm; 15. Tension spring rod; 16. First threaded hole; 17. Tension spring; 21. Handle; 22. Flip plate lock; 23. Elastic pressure rod; 24. Limiting end; 25. Arc-shaped channel; 26. Strip hole; 27. Locking threaded hole; 31. Bearing seat; 32. Connecting plate; 33. Guide 34. Spring; 35. Bearing plate; 36. Base plate; 131. Base; 132. Locking head; 133. Second threaded hole; 134. Groove; 135. Roller; 136. Clearance; 137. Cam follower; 138. First rotating shaft; 139. Second rotating shaft; 351. Limiting rod; 352. Positioning pin; 353. Equal height support rod; 354. Socket assembly; 355. Cylinder; 356. Pressure plate; 357. Lifting slide guide rod; 358. Wedge-shaped guide slope. Detailed Implementation

[0036] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0037] Please see Figures 3 to 9 This utility model provides a pointer pressing device for mounting a pointer 8 on an instrument panel 7. It includes a base 1 and a flip plate 2 that flips and engages with the base 1. The base 1 has a lifting slide 3 in the middle for supporting the instrument panel 7. The base 1 has a connecting rod 4 connected to the lifting slide 3. The connecting rod 4 is externally connected to a rotatable handle 5. The handle 5 rotates and links the connecting rod 4 to drive the lifting slide 3 to move vertically. The flip plate 2 has a pointer clamp 6 for placing the pointer 8. The pointer clamp 6 and the flip plate 2 are rotatably engaged.

[0038] In this embodiment, the proposed pointer pressing device mainly solves the problem of finger injury to installers caused by the current method of pressing with fingers. It mainly uses the lifting slide 3 to place and fix the instrument panel 7, and then places the pointer 8 on the pointer clamp 6 on the flip plate 2. Flipping the flip plate 2 fixes the position of the pointer 8. Then, rotating the handle 5 causes the lifting slide 3 to be lifted through the connecting rod 4, so that the instrument panel 7 and the pointer 8 are aligned. This eliminates the need for finger pressing and significantly improves the worker's work experience.

[0039] Furthermore, the lifting slide 3 includes a support base 31 and a connecting plate 32. Several connecting guide rods 33 are fixed on the connecting plate 32. Each connecting guide rod 33 is fitted with a spring 34. The two ends of the spring 34 abut against the support base 31 and the connecting plate 32 respectively.

[0040] In this embodiment, the support base 31 is mainly used to house the various components. The connecting plate 32 is disposed on the lower side of the support base 31. The connecting guide rod 33 and the spring 34 sleeved on the connecting guide rod 33 enable buffering between the connecting plate 32 and the support base 31, preventing the connecting plate 32 from making hard contact with the support base 31. The connecting guide rod 33 is used to restrict the movement path between the connecting plate 32 and the support base 31.

[0041] Furthermore, the support base 31 includes a support plate 35 and a base plate 36. The support plate 35 is provided with a limiting rod 351, a positioning pin 352, a height-equalizing support rod 353, two socket groups 354, two cylinders 355, and a pressure plate 356. The limiting rod 351 is distributed on the outer edge of the support plate 35. The positioning pin 352 is set on the support plate 35 to fix the instrument panel 7. The cylinders 355 are set under the support plate 35, and their output ends are connected to the socket groups 354. The socket groups 354 are movably engaged with the support plate 35 through their corresponding cylinders 355. The base plate 36 is set under the support plate 35 and is adapted to the connecting guide rod 33. The pressure plate 356 is set on both sides of the support plate 35. The top of the pressure plate 356 is provided with a wedge-shaped guide slope 358, the width of which gradually increases from bottom to top. The height-equalizing support rods 353 are distributed on the support plate 35.

[0042] In this embodiment, the level support rod 353 and the positioning pin 352 provided on the bearing seat 31 are used to fix the instrument panel 7 placed on its upper side. The limiting rod 351 is connected to the limiting end 24 on the flip plate 2, so that after the flip plate 2 is flipped, the highest lifting position of the lifting slide 3 can be limited by the limiting end 24. The two socket groups 354 cooperate with the two cylinders 355, and each operates independently. See Figure 2 When different instrument panels 7 are fixed, the cylinders 355 at different positions drive different socket groups 354, allowing the socket groups 354 to be inserted into the plugs on the back of different instrument panels 7. The pressure plate 356 is used to limit the locking head 132 on the upper side of the support plate 11, so that when the lifting slide 3 is not raised, the locking head 132 is in a tilted state. The wedge-shaped guide slope 358 is used to limit the tilt angle of the locking head 132.

[0043] Furthermore, the lower surface of the support plate 35 is provided with a lifting slide guide rod 357, which is distributed at the four lower corners of the support plate 35. The end of the lifting slide guide rod 357 passes through the base support 1 and slides in cooperation with the base support 1.

[0044] The lifting slide guide rod 357 passes through the base 1, thereby restricting the movement path of the bearing plate 35, which also serves as a guide supplement to the connecting guide rod 33.

[0045] Furthermore, the base support 1 includes a support plate 11, with a square hole 12 in the middle of the support plate 11 that is adapted to the lifting slide 3. A locking member 13, a support arm 14, and a tension spring rod 15 are provided above the support plate 11. The locking member 13 is movably engaged with the flip plate 2, and the support arm 14 is rotatably connected to the flip plate 2. The tension spring rod 15 is located on one side of the locking member 13, and a first threaded hole 16 is provided on the tension spring rod 15. A bolt is placed in the first threaded hole 16, and the tension spring rod 15 stretches the tension spring 17 through the bolt and connects to the locking member 13.

[0046] The square hole 12 of the support plate 11 allows the lifting slide 3 to move up and down. The locking member 13 cooperates with the flip lock 22. When the lifting slide 3 is not moving up, the wedge-shaped guide slope 358 restricts the flip angle of the locking head 132. As the handle 5 rotates, the wedge-shaped guide slope 358 moves up with the lifting slide 3, and the locking head 132 can be fastened to the flip lock 22 to lock the position of the flip 2 and prevent the flip 2 from being pushed open during the pressing of the pointer 8. The first threaded hole 16 is used to cooperate with the bolt installed inside to place one end of the tension spring 17.

[0047] Furthermore, the locking member 13 includes a base 131 and a locking head 132. The locking head 132 and the base 131 are rotatably connected by a first rotating shaft 138. The locking head 132 is provided with a second threaded hole 133, which is located above the first rotating shaft 138. A bolt is placed in the second threaded hole 133 to connect the other end of the tension spring 17.

[0048] The base 131 is used to cooperate with the first rotating shaft 138 to place the locking head 132, and to cooperate with the bolt in the second threaded hole 133 to fix the other end of the tension spring 17. Under the combined action of the first rotating shaft 138, the wedge-shaped guide slope 358 and the tension spring 17, the locking head 132 can be flipped so that it is in a tilted state when the lifting slide 3 is not lifted, and rotates toward the flip lock 22 on the flip plate 2 after the lifting slide 3 is lifted to fasten and fix the flip plate 2.

[0049] Furthermore, the top of the locking head 132 is provided with a groove 134, and a roller 135 is provided in the groove 134. The roller 135 and the groove 134 are rotatably connected by a second rotating shaft 139. A gap 136 is left between the roller 135 and the bottom of the groove 134, and the gap 136 is adapted to the flip plate 2.

[0050] The gap 136 is used to accommodate the bottom of the flap lock 22, so that the flap 2 and the locking head 132 maintain a relatively fixed position. The setting of the roller 135, together with the rotation of the locking head 132, can easily disengage from the flap lock 22.

[0051] Furthermore, a cam follower 137 is provided on the side wall of the locking head 132, which is located between the second rotating shaft 139 and the first rotating shaft 138. The cam follower 137 is pressed to drive the locking head 132 to produce a directional tilt.

[0052] The cam follower 137 is in direct contact with the wedge-shaped guide slope 358, thereby changing the flipping state of the locking head 132.

[0053] Furthermore, a handle 21 is provided above the flip plate 2, and a flip plate lock 22, an elastic pressure rod 23, and a limiting end 24 are provided below the flip plate 2. The flip plate lock 22 is coupled to the base support 1, the elastic pressure rod 23 is set one-to-one with the equal height support rod 353, and the limiting end 24 is set one-to-one with the limiting rod 351.

[0054] The handle 21 facilitates the user to open or flip the flap 2. The elastic pressure rod 23 engages with the height-equal support to fix the edge of the instrument panel 7. The limiting end 24 engages with the limiting rod 351 to limit the maximum flip angle of the flap 2.

[0055] Furthermore, the flip plate 2 is also provided with an arc-shaped channel 25 and a strip-shaped hole 26 that penetrates the flip plate 2. The arc-shaped channel 25 is arc-shaped and penetrates the flip plate 2. The strip-shaped holes 26 are arranged in pairs and located above the pointer clamp 6. The strip-shaped holes 26 are used to expose the locking threaded holes 27 on the pointer clamp 6.

[0056] The arc-shaped channel 25 is mainly for observing whether the pointer 8 is at the zero reading on the instrument panel 7, while the strip-shaped hole 26 is used to fix the pointer clamp 6 and the flip plate 2. That is, after the pointer 8 has been adjusted to the angle, it can be restricted and fixed by the locking threaded hole 27.

[0057] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.

Claims

1. A pointer pressing device for mounting a pointer (8) on an instrument panel (7), characterized in that, The device includes a base (1) and a flip plate (2) that flips and engages with the base (1). The base (1) has a lifting slide (3) in the middle for supporting the instrument panel (7). The base (1) has a connecting rod (4) connected to the lifting slide (3). The connecting rod (4) is externally connected to a rotatable handle (5). The handle (5) rotates and engages the connecting rod (4) to drive the lifting slide (3) to move vertically. The flip plate (2) has a pointer clamp (6) for placing the pointer (8). The pointer clamp (6) and the flip plate (2) are rotatably engaged.

2. The pointer pressing device as described in claim 1, characterized in that, The lifting slide (3) includes a support base (31) and a connecting plate (32). Several connecting guide rods (33) are fixed on the connecting plate (32). Each connecting guide rod (33) is fitted with a spring (34). The two ends of the spring (34) abut against the support base (31) and the connecting plate (32) respectively.

3. The pointer pressing device as described in claim 2, characterized in that, The support base (31) includes a support plate (35) and a base plate (36). The support plate (35) is provided with a limiting rod (351), a positioning pin (352), a height-equal support rod (353), two socket groups (354), two cylinders (355), and a pressure plate (356). The limiting rod (351) is distributed on the outer edge of the support plate (35). The positioning pin (352) is set on the support plate (35) to fix the instrument panel (7). The cylinders (355) are set under the support plate (35), and their... The output end is connected to the socket assembly (354), which is movably engaged with the support plate (35) through its corresponding cylinder (355). The base plate (36) is set under the support plate (35) and is adapted to the connecting guide rod (33). The pressure plate (356) is set on both sides of the support plate (35). The top of the pressure plate (356) is provided with a wedge-shaped guide slope (358), the width of which gradually increases from bottom to top. The equal height support rods (353) are distributed on the support plate (35).

4. The pointer pressing device as described in claim 3, characterized in that, The lower surface of the support plate (35) is provided with a lifting slide guide rod (357). The lifting slide guide rod (357) is distributed at the four lower corners of the support plate (35). The end of the lifting slide guide rod (357) passes through the base (1) and slides with the base (1).

5. The pointer pressing device as described in claim 1, characterized in that, The base (1) includes a support plate (11), and a square hole (12) adapted to the lifting slide (3) is provided in the middle of the support plate (11). A locking member (13), a support arm (14) and a tension spring rod (15) are provided above the support plate (11). The locking member (13) is movably engaged with the flip plate (2). The support arm (14) is rotatably connected to the flip plate (2). The tension spring rod (15) is located on one side of the locking member (13). A first threaded hole (16) is provided on the tension spring rod (15). A bolt is placed in the first threaded hole (16). The tension spring rod (15) stretches the tension spring (17) through the bolt and is connected to the locking member (13).

6. The pointer pressing device as described in claim 5, characterized in that, The locking component (13) includes a base (131) and a locking head (132). The locking head (132) and the base (131) are rotatably connected by a first rotating shaft (138). The locking head (132) is provided with a second threaded hole (133), which is located above the first rotating shaft (138). A bolt is placed in the second threaded hole (133) to connect the other end of the tension spring (17).

7. The pointer pressing device as described in claim 6, characterized in that, The locking head (132) has a groove (134) on its top, and a roller (135) is provided in the groove (134). The roller (135) and the groove (134) are rotatably connected by a second rotating shaft (139). A gap (136) is left between the roller (135) and the bottom of the groove (134), and the gap (136) is adapted to the flip plate (2).

8. The pointer pressing device as described in claim 7, characterized in that, The locking head (132) is also provided with a cam follower (137) on its side wall, which is located between the second rotating shaft (139) and the first rotating shaft (138). The cam follower (137) is pressed to drive the locking head (132) to produce a directional tilt.

9. The pointer pressing device as described in claim 3, characterized in that, A handle (21) is provided above the flip plate (2), and a flip plate lock (22), an elastic pressure rod (23) and a limiting end (24) are provided below the flip plate (2). The flip plate lock (22) is coupled to the base (1), the elastic pressure rod (23) is set one-to-one with the equal height support rod (353), and the limiting end (24) is set one-to-one with the limiting rod (351).

10. The pointer pressing device as described in claim 9, characterized in that, The flap (2) is also provided with an arc-shaped channel (25) and a strip hole (26) penetrating the flap (2). The arc-shaped channel (25) is arc-shaped and penetrates the flap (2). The strip holes (26) are arranged in pairs and located above the pointer clamp (6). The strip holes (26) are used to expose the locking threaded holes (27) on the pointer clamp (6).

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